Answer:
(B) If you take a very large sample of the times the repair person is scheduled to arrive, the person will be on time approximately 65% of the time.
Is correct
ED2021
Probability is the chance of an event to occur from a total number of outcomes.
The correct interpretation of this probability can be:
If you take a very large sample of the times the repair person is scheduled to arrive, the person will be on time approximately 65% of the time.
What is probability?Probability is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
We have,
The probability that an appliance repair person arrives within the window of time scheduled by the company is 0.65.
This means,
The probability that an appliance repair person will arrive at the scheduled time.
= 0.65
= 65/100
This can also be interpreted as out of 100 times 65 times will be on time.
We see that,
The correct interpretation of this probability can be:
If you take a very large sample of the times the repair person is scheduled to arrive, the person will be on time approximately 65% of the time.
Thus,
The correct interpretation of this probability can be:
If you take a very large sample of the times the repair person is scheduled to arrive, the person will be on time approximately 65% of the time.
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Kailynn has a bag with an equal number of red, yellow, and blue marbles. She
makes a tree diagram to show the sample space if she randomly selects two
marbles out of the bag.
What is the probability that both marbles selected are different colors?
Answer:
6/9
Step-by-step explanation:
Probability is the likelihood or occurrence of an event. Probability is the ratio of the total number of possible outcomes to the total outcomes. That is:
Probability = total possible outcomes / total outcomes
From the tree diagram we can see that:
total outcomes = {RR, RY, RB, YR, YY, YB, BR, BY, BB} = 9
getting different colors = {RY, RB, YR, YB, BR, BY} = 6
Therefore, the probability that both marbles selected are different colors = number of different colors / total outcomes
The probability that both marbles selected are different colors = 6 / 9
the charge for a microwave repair visit was $81.21, including tax. if the tax was $6.70, then how much was repair visit?
Answer:
i belive the answer would be 74.51$?
Step-by-step explanation:
this is exact and approximate pi. SOMEONE HELP PLSSS
when you see the word expect you will
Answer:
Um, yes? No clue what you're asking.
Answer:
could you try to rephrase that question? I don't think I understand it.
highest common multiple of 36 and 100
Answer: 2
Step-by-step explanation:
If the correlation coefficient is 0.654, what is the explained variation? (give answer as a percent)
Answer:
42.7%
Step-by-step explanation:
Correlation is a statistical measure of inter relationship between two variables' co movement.
Correlation coefficient denotes the direction & extent by which two variables' (same or opposite) movement is linked to each other.
Coefficient of determination = r^2 symbolises percentage of variation in one variable, that can be explained by variation in other variable.
So, in this case r^2 = (0.654)^2 = 0.427716 ; Hence approx 42.7% variation in one variable can be explained by variation in other.
in circle p, if mQR=110°, mRS=94°, And m<QRT=27° Find each measure. PLEASE HELP ME!!! HAVE TO TURN THIS IN ASAP
Step-by-step explanation:
what do you have to find
Measures of∠QTR, ∠RQS, m arcTS and m arcQT are 55°, 47°, 102° and 54° respectively.
What is angle?An angle is formed when two straight lines intersect at a point. The amount of "spread" between these two rays is called the "angle". It is represented by the symbol ∠. Angles are usually measured in degrees and radians. This is a measure of roundness or rotation.
Given,
In circle P,
m arcQR = 110°
m arcRS = 94°
∠QRT = 27°
Measure of arc is twice to the angle made by arc on boundary of the circle.
m arcQR = 2∠QTR
110° = 2∠QTR
∠QTR = 110/2
∠QTR = 55°
m arcRS = 2∠RQS
94° = 2∠RQS
∠RQS = 94°/2
∠RQS = 46°
m arcQT = 2∠QRT
m arcQT = 2(27°)
m arcQT = 54°
sum of all arcs made on a circle is 360°
m arcQT + m arcTS + m arcRS + m arcQR = 360°
54° + 94° + 110° + m arcTS = 360°
m arcTS = 360° - 258°
m arcTS = 102°
Hence, 55°, 47°, 102° and 54° are measures of∠QTR, ∠RQS, m arcTS and m arcQT respectively.
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Please help thank you
Answer:
1: one solution *x=6
2: no solution
Step-by-step explanation:
1: 4/ 2x -6 = 10/ x +9 --> *cross multiply*
20x - 60 = 4x + 36 --> *subtract 4x from both sides*
16x - 60 = 36 --> *add 60 to both sides*
16x = 90 --> divide by 16
x = 6
WHAT IS THE SIN (-300)
Answer:
√3/2 or 0.886025
Step-by-step explanation:
hey! i’ll give brainliest please help!
Answer:
becoming a monarch I guess that is the correct answer
Answer:
becoming a monarch is the answer
there are 30 students in a class. of those, 15 take history, 18 take geography, and 5 take neither of
these subjects. how many students
take both subjects?
.
Answer:
n(U)=30
n(H)=15
n(G)=18
n(H ∪ G)'=5
n(H ∪ G)=n(U)-n(H ∪ G)'
=30-5=25
So ,n(H ∩ G)=n(H)+n(G)-n(H ∪ G)
=15+18-25=8
Therefore, 8 students take both subjects.
A set is a mathematical model for a collection of diverse things. The total number of students who who take both History and Geography is 8.
What is a set?A set is a mathematical model for a collection of diverse things; it comprises elements or members, which can be any mathematical object: numbers, symbols, points in space, lines, other geometrical structures, variables, or even other sets.
Given that there are 30 students in a class. of those, 15 take history, 18 take geography, and 5 take neither of these subjects. Therefore, we can write the following values,
Total students, n(S)=30Students who take History, n(H)=15Students who take Geography, n(G)=18Students who take neither of the subject, n(H' ∪ G') =5Now, the number of students who take at least one of the two subject can be written as,
Students who choose at least one subject
= Total students - Students who take neither of the subject
n(H ∪ G) = n(U) - n(H ∪ G)'
n(H ∪ G) = 30 - 5
=25
Further, the total number of students who who take both the subjects can be written as,
Students who take both the subjects = Students who take History + Students who take Geography - Students who choose at least one subject
n(H ∩ G) = n(H) + n(G) - n(H ∪ G)
n(H ∩ G) = 15 + 18 - 25
n(H ∩ G) = 8
Hence, the total number of students who who take both History and Geography is 8.
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Dave rolled a number cube 10 times and recorded the frequency of each result in this table. According to the table, what is the experimental probability in simplest form that the number cube shows 6? A.1/10 B.1/6 C. 3/10 D. 1/2
Answer:
C is infact correct
Step-by-step explanation:
Give guy above brainly
The experimental probability in simplest form that the number cube shows 6 will be 3/10.
What is probability ?Probability is a branch of mathematics that deals with the occurrence of a random event.
According to the question
Dave rolled a number cube 10 times and recorded the frequency of each result in this table.
From the table it can be seen that the frequency of rolling a 6 is 3 and the probability of the event occuring is 1/6
so ,
The experimental probability in simplest form that the number cube shows 6 will be
= Frequency / No. of times the dice is rolled
= 3/10
The experimental probability in simplest form that the number cube shows 6 will be 3/10.
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Two Step Equations
x = ¹²ᵈˢ⁄ w
solve for w
Answer:
w = 12ds/x
Step-by-step explanation:
Here, we want to write the equation in terms of w
What we simply do here is to bring x and w to reach others side
we have this as;
w = 12ds/x
What is the equation of the circle with: center (5, 7) & point on the circle: (-2, 8)?
Answer: (x - 5)^2 + (y - 7)^2 = 50
Step-by-step explanation:
The general equation for a circle is (x - a)^2 + (y - b)^2 = r^2 where (a, b) is the centre
Use Pythagoras to find r^2
r^2 = (5 - -2)^2 + (7 - 8)^2
= 7^2 + (-1)^2
= 50
So the circle is (x - 5)^2 + (y - 7)^2 = 50
What is the vertex of the parabola? y+1=−1/4(x−2)2 Enter your answer in the boxes. ( , )
Answer: Just took the test the guy above me is correct correct
Step-by-step explanation:
Answer:
(2,-1)
Step-by-step explanation:
I took the test
Which expression is equivalent to 16x4 – 64? and explain the answer plzz
Answer:
4(4x1-16)
Hope this helps
Have a good day :)
PS I disibuted 4 to 4x1 to get 16 and 4 to -16 to get -64
Step-by-step explanation:
Use a calculator to find the value of these data. Round the value to three
decimal places.
A-0.953
B. -1.909
C. 0.909
D. 0.953
The value of coefficient of correlation coefficient is -0.953 which is a negative correlation between x and y option (A) is correct.
What is correlation?It is defined as the relation between two variables which is a quantitative type and gives an idea about the direction of these two variables.
We have given data in the table.
As we know, the formula for the correlation is given by:
[tex]\rm r = \dfrac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{{[n\sum x^2- (\sum x)^2]}}\sqrt{[n\sum y^2- (\sum y)^2]}}[/tex]
After plugging the value, we will get the value of r:
r = -0.953
Thus, the value of coefficient of correlation coefficient is -0.953 which is a negative correlation between x and y option (A) is correct.
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Simplify.
x/6x-x^2 can you help me solve this question ?
Answer
[tex]\frac{1}{6-x}[/tex]
Step by-step explanation:
= [tex]\frac{x}{6x-x^2}[/tex]
= [tex]\frac{x}{x(6-x)}[/tex]
= [tex]\frac{1}{6-x}[/tex]
Question 5 of 10
Which expression is equivalent to 22 - 3?
A. 22 + 3
B. -22 + 3
C. -22+(-3)
O D. 22+(-3)
SUB
Answer:
D is equivalent to the equation bc you can do additive inverse.
Step-by-step explanation:
22 - 3
You change the symbol to its inverse and the second number to its opposite
22 + (-3)
Need help! This is due very soon!
Answer:
x = - 6, y = 15
Step-by-step explanation:
3x + 2y = 12
3(-6) + 2(15) = 12
-18 + 30 = 12
----------------------------------------
2x - 3y = -57
2(-6) - 3(15) = -57
-12 - 45 = -57
Please help :) I will mark brainless
why is this true 9a=11a-2a
Answer:
9a = 11a - 2a
9a = 9a
Step-by-step explanation:
9a = 11a - 2a
11 - 2 = 9
Similarly, 11a - 2a = 9a
Eleven minus two equals nine. Similarly, 11a minus 2a equals 9a. You can subtract them because they both have the same variable a.
hey! i’ll give brainliest please help.
Answer:
shah
:) hope this helps!
the rocket car was already going 190 mph when the timer started his watch how fast is mph was the rocket car going seven minutes later if it increased its speed by 15 miles per hour
Answer:
2,850
Step-by-step explanation:
190 x 15 = 2850
3. The quadratic function f(x) = - x ^ 2 + 8x - 2 has a turning point whose -coordinate is 4. Which of the following represents the range of this function?
Answer:
Step-by-step explanation:
Answer:
its A
Step-by-step explanation:
someone help pls:)))))))))
A fish tank is 3.2 feet long, 1.3 feet wide, and 6.2 feet tall.
How many cubic feet of water can the fish tank hold?
Answer:
25.8 cubic feet
Step-by-step explanation:
Volume = l · w · h
V = (3.2)(1.3)(6.2)
V = 25.792
ASAP LAST DAY TO TURN IN*
Determine the surface area of the three-dimensional composite figure after rotation about the x-axis. Show all work to receive credit. Bubble answer on griddable. Round to the nearest hundredth if necessary.
Answer:
72.85 sq units
Step-by-step explanation:
SA = (½×4×3.14×2²)+(2×3.14×2×2) +(3.14×2×3.6)
= 25.12+25.12+22.61
= 72.85 sq units
percentage is not my strong suit
Answer:
1/4
Step-by-step explanation:
According to the word problem:
A number cube is numbered 1-6A spinner has 3 consonants and 1 vowel-------------------------------------------------------------------
-------------------------------------------------------------------
The question is asking the probability of rolling a number less than 3 and a consonant.
Well, there are 2 numbers less than 3 on the number cube, 2 and 1. So of the six numbers, 2 of them are less than 3 (2/6).
There are 3 consonants on the spinner. So, of the 4 letters, 3 of them are constants (3/4).
Now, that we know the likelihood of each event, multiply them.
[tex]2/6*3/4=6/24[/tex]
[tex]6/24=1/4(simplified)[/tex]
The dot plots show the heights of boys and girls at a summer camp.
Heights of Boys and Girls at Camp
2 dot plots with number lines going from 40 to 60. A plot is titled Boy's Heights. There are 0 dots above 40, 1 above 41, 3 above 44, 3 above 46, 2 above 48, 3 above 50, 4 above 52, 4 above 54, and 0 above 56, 58, and 60. A plot is titled Girl's Heights. There are 0 dots above 40 and 41, 2 dots above 44, 3 above 46, 1 above 48, 3 above 50, 4 above 52, 3 above 54, 4 above 56, and 0 above 58 and 60.
Which is a true statement for most of the data in each plot?
Most of the data in each plot are greater than 48.
Most of the data in each plot are less than 48.
Most of the data in each plot are around 52.
Most of the data in each plot are around 54.
Answer:
A.
Step-by-step explanation:
Most of the data in each plot are greater than 48, EDG 2021
Answer:
a
Step-by-step explanation: