The measures of heights (in inches) of a class of students are shown. 60, 60,54, 62, 62, 57,58, 65, 54,67, 63,57, 62, 54, 72, 66, 54, 69, 55, 61 Find the mean, median, mode, range, and standard deviation of the heights.b. A new student who is 7 feet tall joins your class. How would you expect this student’s height to affect the measures in part (a)?

Answers

Answer 1

Answer:Compute the variance: 49+25+16+9+1+16+36+648=27.

The variance is a measure of the dispersion and its value is lower for tightly grouped data than for widely spread data. In the example above, the variance is 27. What does it mean to say that tightly grouped data will have a low variance? You can probably already imagine that the size of the variance also depends on the size of the data itself. Below we see ways that mathematicians have tried to standardize the variance.

Step-by-step explanation:


Related Questions

Which expression is equivalent to n2 26n 88 for all values of n?

Answers

The value of the expression n² + 26n + 88 is equivalent to negative 4 and negative 22.

What is a factorization?

It is the method to separate the polynomial into parts and the parts will be in multiplication. And the value of the polynomial at this point will be zero.

The expression is n² + 26n + 88

Put that expression to get the solution

          n² + 26n + 88 = 0

 n² + 22n + 4n + 88 = 0

n(n + 22) + 4(n + 22) = 0

          (n + 4)(n + 22) = 0

The value of n is negative 4 and negative 22.

More about the factorization link is given below.

https://brainly.com/question/6810544

2. The back of Nico’s truck is 7.5 feet long, 4 feet wide, and 8 feet tall. He has several boxes of important papers that he needs to move. Each box of papers is shaped like a cube, measuring 2.5 feet on each side.
How many boxes of papers can Nico pack into the back of his truck? Show your work.
Answer:

Answers

Answer:

9 boxes

Step-by-step explanation:

As the truck is 7.5 ft long, we can fit 3 boxes of paper along the length since 7.5 ÷ 2.5 = 3

As the truck is 4 ft wide, we can only fit 1 box of paper along the width

since 4 ÷ 2.5 = 1.6

As the truck is 8 ft tall, we can fit 3 boxes of paper high

since 8 ÷ 2.5 = 3.2

Therefore, the number of boxes of paper is:

3 × 1 × 3 = 9

Answer:

9 boxes

Step-by-step explanation:

Look above me ;)

Referring to question 1, what is the predicted strength of a weld with a diameter of 51?

Answers

The predicted strength is an illustration of a linear regression

The predicted strength of a weld with a diameter of 51 is -503.2

How to determine the predicted strength?

The equation of the predicted strength is given as:

Strength = -941.6992 + 8.5988*Diameter

Substitute 51 for diameter

Strength = -941.6992 + 8.5988*51

Evaluate the sum

Strength = -503.1604

Approximate

Strength = -503.2

Hence, the predicted strength of a weld with a diameter of 51 is -503.2

Read more about linear regressions at:

https://brainly.com/question/17844286

The predicted strength is an illustration of linear regression.

The predicted strength of a weld with a diameter of 51 is -503.2.

What is linear regression?

Linear regression strives to show the relationship between two variables by applying a linear equation to observed data.

The equation of the predicted strength is given as:

Strength = -941.6992 + 8.5988 × Diameter

Substitute 51 for diameter

Strength = -941.6992 + 8.5988 × 51

Strength = -941.6992 + 438.5898

Strength = -503.1604

Strength = -503.2

Hence, the predicted strength of a weld with a diameter of 51 is -503.2.

Read more about linear regressions at:

brainly.com/question/17844286

Can someone please help me with this? My mind is blank after doing a lot of questions.

Answers

Answer:

6 Hours

Step-by-step explanation:

No.of leaflets---no.of people---work hours

1000 ————. 4. - — — — — — — 5

1500 — — — —5 — — — — — ,— —?

If work increase, no.of people needed more

So, the required ratio is 1500/1000

If work men increase, no of hours decrease

So, the required ratio is 4/5

(1500/1000)× (4/5)×5 = 6

No.of hours required to distribute 1500 leaflets by 5 people = 6 hours

Which of the following inequalities matches the graph?

Answers

Answer:

x ≤ -7

Step-by-step explanation:

On the graph we can see that:

-the pink solid line is where x= -7 and y can have any value, so is either first or second choice.

-the pink area includes numbers that are equal or less then -7 ( such as -8, -9,-10,...) so the inequality must be x ≤ -7 (the second choice. )

See the line is parallel to y axis

Means x is constanty is varrying

So

x intercept is (-7,0)

X is constant -7

Hence the inequality is

x≤-7

100 BRAINLY POINTS!!!!

The cost, y, in dollars, to purchase x school T-shirts includes a one-time setup fee, plus a charge per T-shirt. The cost is modeled with the linear function y = 6.67x + 35. What is the cost to purchase each T-shirt after the beginning setup cost is paid?

A. $41.67

B. $35.00

C. $28.33

D. $6.67

PLEASE HELP CUH

EXPLAIN YOUR ANSWER
SHOW YOUR WORK

Answers

$6.67 or D IS THE COST OF EACH TSHIRT!

Let's check our given function.

y=6.67x+35

Compare to y=mx+b(Slope intercept)

Slope=m=6.67Y intercept=b=35

So beginning set up is fixed i.e 35 .

per shirt cost the rate of change which is slope

option D is correct

name 2 semi circles


Answers

Answer:

Arc CDE and arc EAC.

Step-by-step explanation:

Semicircles are exactly one-half of a circle and are always equal to 180 degrees. Since line CE is a horizontal line, measuring 180 degrees, 2 semicircles can be arcs CDE and EAC because they equal half of the circle.

I hope this helps!

If year boys built 3/14of an igloo and year 3 girl have built 3/7of the same igloo.How much have they built in all?How much is left? Show your working out?​

Answers

Answer:

year boy built an igloo =3/4

year3 girl built same igloo=3/7

To find out all together how much have built =3/4+3/7

if we take alceam

4×7=28

in fraction down we need to make 28

so 3/4 we multiply by 7 and 3/7we multiply by 4

3×7/4×7+3×4/7×4=21/28+12/28=21+12/28

33/28

to find out we divide fraction we will know what left .

1,5/28

5is left.

Danny has 1.08 pounds of cat food. he uses 0.12 pound of cat food to feed one cat. how many cats can danny feed with the cat food he has?

Answers

Answer:

9

Step-by-step explanation:

1.08 divided by 0.12 equals 9

Fill in the table using this function rule y=4x+1

Answers

Answer:

1. -7

2. 1

3. 9

4. 17

Step-by-step explanation:

y = 4x + 1

1. y = 4 (-2) + 1

  y = -8 + 1

   y = -7

2. y = 4(0) + 1

    y = 1

3. y = 4 (2) + 1

   y = 8 + 1

   y = 9

4. y = 4 (4) + 1

   y = 16 + 1

   y = 17

I hope this helps!

Using function rule, we get,

1. -7

2. 1

3. 9

4. 17

**Given Equation:** y = 4x + 1

1. For x = -2:

  - Substitute x = -2 into the equation: y = 4 (-2) + 1

  - Calculate: y = -8 + 1

  - Result: y = -7

2. For x = 0:

  - Substitute x = 0 into the equation: y = 4(0) + 1

  - Calculate: y = 1

  - Result: y = 1

3. For x = 2:

  - Substitute x = 2 into the equation: y = 4 (2) + 1

  - Calculate: y = 8 + 1

  - Result: y = 9

4. For x = 4:

  - Substitute x = 4 into the equation: y = 4 (4) + 1

  - Calculate: y = 16 + 1

  - Result: y = 17

To know more about function rule,

https://brainly.com/question/10705186

#SPJ3

3. What is the area of the triangle below? (1 point) O 6.0 ft2 O 8.6 ft2 O 15.0 ft? O 17.2 ft2 ​

Answers

Answer:

A ≈ 8.6 ft²

Step-by-step explanation:

the area (A) of the triangle is calculated as

A = [tex]\frac{1}{2}[/tex] × 7 × 3 × sin55°

  = [tex]\frac{1}{2}[/tex] × 21 × sin55°

  = 10.5 × sin55°

  ≈ 8.6 ft²( to 1 dec. place )

PLEASE HELP ASAP
(answer as many as you can please)

a. write the first four terms of the series

b. does the series diverge or converge?

c. if the series has a sum, find the sum

Answers

Answer:

A) -4,-4/3,-4/9,-4/27

B) converge

C) no idea

1) d= 7.4 mm
Calculate the area of the circle.

2) r=2.2 yd.
Calculate the circumference of the circle.

3) d = 5 cm
Calculate the circumference of the circle.

4) d = 6 m
Calculate the circumference of the circle.

5) r = 2.1 m
Calculate the area of the circle.

6) r=1.3 mm
Calculate the circumference of the circle.

Answers

Answer:

1. 43.01 mm²

2. 13.82yd

3. 15.71cm

4.18.85m

5. 13.85m²

6. 8.17mm²

Step-by-step explanation:

/ means divided by

* means multiplied by

radius is half of a diameter

circumference of a circle is pi multiplied by diameter

area of a circle is pi multiplied by radius squared

1. radius is 7.4 divided by 2 which is 3.7

radius of 3.7 squared is 13.69

pi multiplied by 13.69 is 43.01

2. diameter is radius times 2

2.2 times 2 is 4.4

ℼ * 4.4 = 13.82

3. pi*5=15.71

4. pi*6=18.85

5. 2.1*2.1 = 4.41 -> pi*4.41 = 13.85

6. 1.3*2= 2.6 -> pi*2.6=8.17

A cylinder has a base diameter of 20ft and a height of 5ft. What is its volume in cubic ft, to the nearest tenths place?

Answers

Answer:

Formula for volume of cylinder;

V = π[tex]r^{2}[/tex]h

Where 'π' represents pi(22/7 or 3.14), 'r' represents the radius which is 1/2 x diameter (half of diameter = radius) which is squared, and 'h' which represents the height.

To find the radius of the diameter 5, we must find 1/2 of 5:

1/2 x 5

5/2 = 2.5 is our radius.

Now we plug these into our equation:-

V = π[tex]r^{2}[/tex]h

V = 3.14(2.5^2) x 20

V = 3.14(6.25) x 20

V = 19.625 x 20

V = 392.5 cubic feet.

You have $10.00 and want to buy all of the items below. How much change
will you have left after you make your purchase? Do not include $ in your
answer.
ITEM
COST
Bagels
Cream Cheese
Raisins
$2.66
$1.85
$2.66
Help pls

Answers

Answer: 2.83

Step-by-step explanation:

2.66+1.85+2.66 = 7.17

10.00 - 7.17 = 2.83

ACTIVITY 1: LET'S PRACTICE!
Directions: Write Yes, if the two triangles are congruent and No if not. State the
postulate to justify your answer.


Pa help po please

Answers

Answer:

1. YES

1. YES2. YES

1. YES2. YES3.YES

4.NO

Hope it helps

A circular piece of glass has a radius of 1.2 meters. The glass sells for $7.10 per square meter. What is the total price of the glass?

Answers

Answer:

$8.52 that should be the answer

What is the tangent ratio of angle KJL?

Answers

Answer: (1)

Step-by-step explanation:

Using the properties of a 30 60 90 triangle, we get that ML=24sqrt3 and JM=24.

This means that the tangent is 24sqrt3 / 24.

find the area of the triangle if the length is 22 and the height is 15

Answers

Answer:

low 0.5 *the length of the base * the height

Step-by-step explanation:

0.5*22*15=165

The formula for area in triangles is (1/2) x b x h
The base of this triangle is 22, the height is 15.
0.5 x 22 x 15 = 165
All you need to do now is add the inches or feet or whatever is being used as a measurement to the end of 165

 Order these numbers least to greatest

Answers

Answer:

1. -83/7

2. -11.6666666

3. - square root of 133

4. 11 5/10

One bag of alice's trail mix contains 40 grams of almonds and 30 grams of raisins.
0
almonds
raisins
(g)
0
complete the double number line to show the other values of almonds and raisins.
choose 1 answer:
0 40
80 120 160
almonds

Answers

Answer:

A

Step-by-step explanation:

I guessed and it was right.

Answer:

B

Step-by-step explanation:

please giv the answer asap. I'll mark brainliest.​

Answers

Answer:

Step-by-step explanation:

x = 5.4178

10000x = 54178.178

10x =              54.178              Subtract: that gets rid of the repeating decimal.

9990x  =        54124               Divide by 9990 on both sides

9990x/9990 = 54124/9990  The Greatest common divisor of these two is 2

x = 27062/ 4995

p/q = 27062 / 4995

HELLLO!HELLO HELP PLIS

Answers

Answer:

984m

Step-by-step explanation:

so all your doing is:

41 x 24 = 984m

Answer:

984

Step-by-step explanation:

It's so easy. Multiply 24 and 41 to get the area of the rectangle

i need help this is due in 10 mins

Answers

Answer:

180 degree rotation

Step-by-step explanation:

Answer:

Reflect across the y-axis

Translate horizontally 7 units right

Step-by-step explanation:

Alright I'll try to quickly answer this for you.

Firstly you could try reflecting figure P across the y axis. That would mean multiplying the whole function times -1.

So a point like (-2,3) would be come (-2,-3), and then visualize moving that point to where it would be on figure Q. It looks like it would be on (5,-3) on figure Q. So to take (-2,-3) to (5,-3) you translate it horizontally 7 units right.

Which expression is equivalent to this equation attached? Please help! I will make brainliest

Answers

Step-by-step explanation:

please mark me as brainlest

Complete the missing steps to express in simplest radical form.

Answers

1. yu take the first expression and win over the second

Help me understand how to do this please. (?)

Answers

Step-by-step explanation:

part 1: the exponent is the power or the number you see ontop of n. it indicates how many times n is multiplied by itself. so for the first question n is multiplied by itself 6 times. so the answer should be n×n×n×n×n×n.

part 2 is similar to part 1.

since there is a total of 6 ns we can say that it is n^6.

feel free to ask if you need any further guidance.

please help me with this its so easy .

recommend me a bunch of animmes---s (not the cringe kind that have 0 plot)

(do not reccomend any animes that are about a shy anti social boy who bags a social popular girl. )

Answers

yo i recommend googling best watched animes off all time or from the anime community itself.

Answer:

Megalobox black lagoon doraemon fate/grand order made in abyss high rise invasion dusk maiden of amnesia mahou shoujo site black butler ergo proxy I think are some

Step-by-step explanation:

Please Help Am Confused!

Answers

Answer:

Count the sides;

(look at image below)

= 17 - gon

Find the values of x and y
x=
and
y=

Answers

Answer:

x=145 and y=35

Step-by-step explanation:

the hole line equals 180 so do 35-180 which equals 145 and y would equal 35

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