1. what is the median of the data set?

9, 3, 10, 12, 4, 5, 12, 2

enter your answer in the box.


2.what is the mode of the data set?

23, 95, 100, 23, 100, 100

enter your answer in the box.

3.what is the mean of the data set?

108, 305, 252, 113, 191

enter your answer in the box.

4.at sara's new job she spent $11.52, $6.48, $5.99, $14.00, and $9.50 on lunch the first week.

in the second week, she spent $4 more in total for the 5 lunches than the first week.

what is the increase in the mean for the second week compared to the first?

round the answer to the nearest penny.

enter your answer in the box.

5.a class of 25 students took a spelling test. two students scored 100 on each test, nine students scored 95 on each test, ten students scored 90 on each test, three students scored 80 on each test and one student scored 70.

what is the average score of the spelling test rounded to one decimal place?

enter your answer in the box.

1. 7

2. 100

3. 193.8

4. 0.8

5. 90.6

Step-by-step explanation:

1. Given the data  9,3,10,12,4,5,12,2

For finding the median we arrange it in ascending order

2,3,4,5,9, 10,12,12

Since the no of observations are even

∴ median =

=

=

=7

i.e. Median =7

2. Given the data

23, 95,100,23,100,100

Since the no 100 is repeated thrice i.e. the maximum no of times

∴ Mode=100

3.

Given the data

108, 305,252,113, 191

Mean=

=

=193.8

4. Money spent in the first week

= $11.52, $6.48, $5.99, $14.00, and $9.50

Total for the first week

=11.52+6.48+5.99+14.00+9.50

=$47.49

Now she spent $4 more in the second week

i.e.$47.49+4

=51.49$

Increase in mean =

=0.8

5.

Given

2 students scored 100 each

9 students scored 95 each

10 students scored 90 each

3 students scored 80 each

1 student scored 70

Total score of students =

=2265

The average score

=

=90.6

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.

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step-by-step explanation: