Mathematics, 05.11.2019 20:31 Jofish5815

Below are the data collected from two random samples of 500 american students on the number of hours they spend in school per day (rounded to the nearest hour):

number of hours in school per day
4
5
6
7
8
sample a: number of students
70
100
125
135
70
sample b: number of students
80
90
120
125
85

meg concludes that students spend a mean of 7 hours in school each day. tara thinks the mean is 6 hours. who is correct—meg or tara? explain your answer in two or three sentences. make sure to use facts to support your answer
asap

Answers: 2

Show answers

Answers

Answer from: ashleyjohnson2002

To find the mean you must add up all the numbers you have together and then divide the buy the amount of numbers you added. When you add these numbers up you get 30, and we have 5 numbers here, when we divide 30 by 5 we get 6. So, Tara is correct in saying that the mean is 6.

Answer from: hdkdkdbx

Alright, so I copied the answer from my test, and so now I'm handing it to you.

Tara would be correct. The reason to why this is the answer is that I had to add all the “number of hours in a school per day” to get 30. Then, you would have to divide 30 by 5 (because you have five different hours for a school day) to get 6. Your mean would be 6 because mean is adding up the amount of something, then dividing it of how many numbers you added.

I hope I helped.

-Aiden A.

Answer from: Quest

Answer: 10pi

x = central angle apc = measure of minor arc ac

the two angles x and 30 add to 180, so x+30 = 180 and x = 180-30 = 150. the measure of minor arc ac is 150 degrees.

what we need to do from here is find the circumference and then multiply it by x/360 since there are 360 degrees in a circle. in this case, x = 150, so x/360 = 150/360 = 15/36 = 5/12. the shortest distance along the curve from a to c is 5/12 of the distance around the entire circle (aka circumference)

c = circumference

c = pi*d

c = pi*24

c = 24pi

now multiply this by 5/12 to get

distance along minor arc ac = (5/12)*(circumference)

distance along minor arc ac = (5/12)*(24pi)

distance along minor arc ac = 10pi

the formula you can use is

l = (x/360)*pi*d

with

l = length of minor arc

x = central angle

d = diameter

which essentially is the steps we took though a bit differently.

Find the length of ac express your answer in terms of pi

Answer from: Quest

javeir earned 56 dollors more than kyle so kyle and javier had 14w but javier made 56 dollors more so 14w plus 56 equals 70w so kyle has 14w

step-by-step explanation: hope i plz give me brainliest with the points so this is not constant cause it says last week so its clearly not every week

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 20:30, plzhelpmeasap46

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?

Answers: 3

continue

Mathematics, 21.06.2019 21:00, Anybody6153

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Answers: 1

continue

Mathematics, 22.06.2019 00:30, OperatorBravo

Which equation represents h for right triangle abc

Answers: 1

continue

Mathematics, 22.06.2019 04:20, barbar12345

Is an altitude in triangle abc. which statements are true? check all that apply. δabc δbxc δaxc ~ δcxb δbcx δacx δacb ~ δaxc δcxa δcba

Answers: 2

continue

You know the right answer?

Below are the data collected from two random samples of 500 american students on the number of hours...