All categories

2 years ago

Here is the histogram of a data distribution. All class widths are 1. What is the median of this distribution?

Mathematics

1 answer:

Bingel [31]2 years ago

6 0

Answer:

The median is 4.

Step-by-step explanation

if you layout all the number, you get

1,2,2,3,3,3,4,5,5,5,6,6,7

So, to find the median you find the number(s) right in the middle.

(Ex. 3,4,5; 4 is the median)

(Ex. 3,4,5,7; 4.5 is the answer)

The middle number of

1,2,2,3,3,3,4,5,5,5,6,6,7

is 4, so 4 is the median.

hope this helps. :)

You might be interested in

Axel lives in Virginia and makes $54,000 a year. If the median annual income in Virginia is $61,233 and the median annual income

Olenka [21]

Yes, yes she is.
Hope this helps.

5 0

2 years ago

Read 2 more answers

Brody had his computer repaired at Store A. His bill was:

tekilochka [14]

Answer:

$190.80 gratuity tip.

Step-by-step explanation:

Adding up the initial cost and tax, it adds up to $1,272. Subtracting 85% from the total is $190.80.

7 0

1 year ago

The table shows the number of hours of sleep all members of a theater group got the night before their musical.

Neko [114]

The Sample Mean of hours slept of the ten men asked is 8.4 hours.

The population Mean of hours slept of all the members of the theater group is 8.3 hours.

8 0

2 years ago

Read 2 more answers

The cost of insurance on a house is directly proportional to the area of the house.Samhas a 2,500 square-foot house and pays a m

DochEvi [55]

Answer:

y tú la vez bebiendo de la botella guz dividido por qué colgaron que no se sienta en tu casa no te preocupes que no me dijan no me dijan no me dijan que hacen

7 0

2 years ago

The amount of time required to reach a customer service representative has a huge impact on customer satisfaction. Below is the

Vika [28.1K]

Answer:

The value of the test statistic is t=1.12.

Step-by-step explanation:

This is a hypothesis test for the difference between populations means.

The claim is that the mean amount of time required to reach a customer service representative significantly differs between the two hotels.

Then, the null and alternative hypothesis are:

$H_0: \mu_1-\mu_2=0\\\\H_a:\mu_1-\mu_2\neq 0$

The sample 1, of size n1=20 has a mean of 2.65 and a standard deviation of √2.952=1.72.

The sample 2, of size n2=20 has a mean of 2.01 and a standard deviation of √2.952=1.89.

The difference between sample means is Md=0.64.

$M_d=M_1-M_2=2.65-2.01=0.64$

The estimated standard error of the difference between means is computed using the formula:

$s_{M_d}=\sqrt{\dfrac{\sigma_1^2+\sigma_2^2}{n}}=\sqrt{\dfrac{1.72^2+1.89^2}{20}}\\\\\\s_{M_d}=\sqrt{\dfrac{6.531}{20}}=\sqrt{0.327}=0.571$

Then, we can calculate the t-statistic as:

$t=\dfrac{M_d-(\mu_1-\mu_2)}{s_{M_d}}=\dfrac{0.64-0}{0.571}=\dfrac{0.64}{0.571}=1.12$

5 0

2 years ago