Help plz:)))I’ll mark u Brainliest

Answer:

The interquartile range is the difference between the highest and lowest values in the middle of a data set.

Step-by-step explanation:

The range is the difference between the maximum and minimum value, hence, it cannot be greater than the maximum value, which is the greatest value in a dataset, the highest value a range could have being equal to the maximum value when the minimum vlaue of the dataset is equal to 0.

The mean is the average value of a dataset, hence, it cannot be greater than the maximum value.

The interquartile range is the middle 50% or half of a dataset and not the difference between the highest and lowest middle values in the middle. It is obtained by taking the difference of the upper and lower QUARTILE.

Answer:

28 out of 40

2(20 - x)/40 for x questions wrong

Step-by-step explanation:

total points: 40

total Qs: 20

20-6 = 14

14/20 = 28/40

28

Step-by-step explanation:

Answer:

15.81

Step-by-step explanation:

c=a^2+b^2=5^2+15^2≈ 15.81139

Answer:

James has 32 game cards

Step-by-step explanation:

X=Fay

x+16=James

X(Fay) + (x+16) James =48

x+x+16=48

2x=32

x=16 Fay

x+16 James

16 + 16=32 James

check answer:

16 Fay + 32 James =48

16+32=48

48=48

Answer:

24 centimeters

Step-by-step explanation:

7 + 7 + 5 + 5 = 24

have a nice day :)

Answer:

0°C

No Modal

Step-by-step explanation:

The range of a set is calculated by subtracting the max value by the lowest value in the set. Which using the data provided would be the following

range Last Year: 19 - 9 = 10

range 2 years ago: 17 - 7 = 10

Since we see that the range for both sets is 10 degrees then the difference is 0 degrees.

There is no modal temperature last year since no same temperature has appeared more than once.

Answer:

[tex] 220.5 \: {yd}^{2} [/tex]

Step-by-step explanation:

Area of the figure = Area of the arc with radius 10 yd and central angle 90° + Area of rectangle with dimensions (10 + 5 - 3 = 12) 12 yd and (7 + 6 - 4 = 9) 9 yd + Area of square with dimension 4yd + Area of rectangle with dimensions 3 yd by 2 yd + Area of triangle with base 3 yd and height (5 + 3 = 8) 8 yd.

[tex] = \frac{90 \degree}{360 \degree} \times 3.14 {(10)}^{2} + 12 \times 9 + {4}^{2} \\ + 3 \times 2 + \frac{1}{2} \times 3 \times 8 \\ \\ = \frac{1}{4} \times 314 + 108 + 16 + 6 + 12 \\ \\ = 78.5 + 142 \\ \\ = 220.5 \: {yd}^{2} [/tex]

Step-by-step explanation:

10±10±30±30=80

8round = 80×8=640

Answer:

Mean girls or Clueless

Step-by-step explanation:

Answer:

The pvalue of the test is of 0.0979 > 0.01, which means that we cannot conclude that the mean tuition and fees for private institutions in California is greater than $35,000.

Step-by-step explanation:

Test if the mean tuition and fees for private institutions in California is greater than $35,000.

This means that at the null hypothesis we test if the fee is of $35,000 or less, that is:

[tex]H_0: \mu \leq 35000[/tex]

And at the alternate hypothesis, we test if it is more than this value, that is:

[tex]H_a: \mu > 35000[/tex]

The test statistic is:

As we have the standard deviation of the sample, the t-distribution is used.

[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]

In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, s is the standard deviation and n is the size of the sample.

35000 is tested at the null hypothesis:

This means that [tex]\mu = 35000[/tex]

The mean annual tuition and fees in the 2013-2014 academic year for a sample of 13 private colleges in California was $38,000 with a standard deviation of $7900.

This means that [tex]n = 13, X = 38000, s = 7900[/tex]

Value of the test-statistic:

[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]

[tex]t = \frac{38000 - 35000}{\frac{7900}{\sqrt{13}}}[/tex]

[tex]t = 1.37[/tex]

Pvalue of the test and decision:

The pvalue of the test is the probability of finding a mean above 38000, which is the pvalue of t = 1.37, with 13 - 1 = 12 degrees of freedom, using a one-tailed test.

With the help of a calculator, this pvalue is of 0.0979.

The pvalue of the test is of 0.0979 > 0.01, which means that we cannot conclude that the mean tuition and fees for private institutions in California is greater than $35,000.

Answer:

3:1:4

Step-by-step explanation:

So the ratio is 18:6:24

To simplify it you divide all the numbers by 6 ( the highest common factor )

It then becomes 3:1:4

HOPE THIS HELPED

Answer:

J is the correct option.

Step-by-step explanation:

Have a nice day!

Answer:

12:7

Step-by-step explanation:

From the diagram shown;

QS/PS = RT/PT

QS/PS = RT/PS+ST

QS/14 = RT/14+10

QS/14 = RT/24

14RT = 24QS

RT/QS = 24/14

RT/QS = 12/7

Hence the required ratio is 12:7

Answer:

A sample of 2017 should be taken.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is of:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of 0.30.

This means that [tex]\pi = 0.3[/tex]

Confidence level:

Not given, so I will use 95%.

This means that [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

a. [2.5 pts] How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of 0.02?

A sample of n should be taken.

n is found fo M = 0.02. So

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]0.02 = 1.96\sqrt{\frac{0.3*0.7}{n}}[/tex]

[tex]0.02\sqrt{n} = 1.96\sqrt{0.3*0.7}[/tex]

[tex]\sqrt{n} = \frac{1.96\sqrt{0.3*0.7}}{0.02}[/tex]

[tex](\sqrt{n})^2 = (\frac{1.96\sqrt{0.3*0.7}}{0.02})^2[/tex]

[tex]n = 2016.8[/tex]

Rounding up:

A sample of 2017 should be taken.

Answer:

b.) Analyzing the number of hours that freshman, sophomores, juniors, and seniors study in a semester as well as the number of hours of sleep each group gets at night.

Step-by-step explanation:

Analysis of Variance could be referred to as a form of statistical test which is used to evaluate the average or mean changes of a continous dependent variable based on the different combination of the input levels of TWO independent or predictor variables. From the options given, the option selected, the analysis is based on TWO independent, predictor variables which are hours of study in a semester and the number of sleeping hours for 3 different levels or categorical groups of students (Freshman, sophomore, Junior and Seniors) get at night.

Since, we can identify two distinct independent variables, then it is fit for analysis using a 2 - way ANOVA.

Answer:d

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

16 anos

Step-by-step explanation:

Answer:

(2,13)

Step-by-step explanation:

Answer:

9r

Step-by-step explanation:

Answer:

Step-by-step explanation:

If the sum of two angles = 180°

Then the pair of angles will be supplementary.

If the sum of two angles = 90°

Then the pair of angles will be complementary.

Sum of angles having measures 98° and 82° = 98° + 82°

                                                                          = 180°

Therefore, both the angles will be supplementary.

Sum of angles having measures 134° and 36° = 134° + 36°

                                                                            = 170°

Therefore, these angles are neither supplementary nor complementary.

So the answer is NEITHER.

Answer: 4x + 3y +20 is your answer hope this helped

plz make brainly

Step-by-step explanation:

i hope it helps XD......

Answer:

A and B tbh

Step-by-step explanation: there is only 5 prime numbers in 12 and A and B are 6 and 6 a ratio of 6:6

Thus both A and B will be right unless you can pick multiple its A and B

Answer:

Chrome and camera. 1000 mistakes

Step-by-step explanation:

bvggifui good go you uuuu to yyytyyyyggyhgghhhghhhhhhhhhbbhvvvdf uh oh utgggy

Answer:

i think he won 15 of 0 rounds

Step-by-step explanation:

i just divided

Answer:

she can paint 17  statues (with  some paint left,but not enough for another statue)

Step-by-step explanation:

7/8 divided into  1/20

is the same as   7/8 multiplied by 20/1

7/8 x 20/1  = 140/8  = 17.5

Answer:

50-(5×8)

Step-by-step explanation:

brainliest please