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

Tara is correct.

Step-by-step explanation:

The mean is the average of the numbers.

Number of hours      Sample A      Sample B

4                                   70                         80        

5                                  100                       90

6                                  125                       120

7                                  135                       125

8                                70                          85

The mean number of hours is :

Tara is correct as the mean is the average of the given data(hours).

The answer is in the image 

The total nom of  code that can be used is equal to 5+3 = 8

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

Approximately it is aqual to 1300kg

Here,

tip=18%of $32

tip=(18/100)*32

=0.18*32

=$5.76

Total payment=32+5.76=$37.76

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make $108 in $1800 sales

The answer is in the image 

tip=18% of 75.45

     =18/100 * 75.45 = $13.581

Tip = $13.581

Let the father's age be x and son's be y

10 years before-

Father age=x-10

sons age=y-10

Given,

x-10=10(y-10)

x-10=10y-100

Given present age of father=40

therefore,

x=40

40-10=10y-100

10y-100=30

10y=130

y=130/10

y=13

Therefore present age of son=13years