Question

Please make sure my work is correct

Answer 1

he box plots show attendance at a local movie theater and high school basketball games:

two bar graphs shown. The top one is labeled Movies. Minimum at 130, Q1 at 162, median at 185, Q3 at 195, maximum at 290. The bottom bar graph is labeled Basketball games. Minimum at 85, Q1 at 170, median at 200, Q3 at 225, maximum at 230.

Which of the following best describes how to measure the spread of the data?

The IQR is a better measure of spread for movies than it is for basketball games.
The standard deviation is a better measure of spread for movies than it is for basketball games.
The IQR is the best measurement of spread for games and movies.
The standard deviation is the best measurement of spread for games and movies.

Answer 2

c

Answer 3

Yes, I would use IQR for both , because IQR is better than std dev for "asymmetric distributions" . Neither of your plots look very symmetric (even-sided)

Answer 4

thank you @phi would you make sure a few others are correct

Answer 5

@TheSmartOne @phi @amistre64

Answer 6

The table shows data from a survey about the number of times families travel by car or taxi during an average week. The families are either from a rural town (population under 5,000) or a large city (population over 1 million):

Rural Town City
5 0
6 0
7 1
8 1
15 5
25 8
25 9
35 10
36 12
40 18
42 38

Which of the choices below best describes how to measure the center of this data?
Both centers are best described with the mean.
Both centers are best described with the median.
The country data center is best described by the mean. The city data center is best described by the median.
The country data center is best described by the median. The city data center is best described by the mean.

Answer 7

c

Answer 8

whats our medians and means ?

Answer 9

22.18 for rural town @amistre64

Answer 10

that is the mean

Answer 11

median ia 25

Answer 12

92 for the other one median is 8 @amistre64

Answer 13

mean, median
22 25
9 8

Answer 14

ok

Answer 15

so c is right @amistre64

Answer 16

i dont like this mouse .... it has buttons on the side that stupidly are programmed to back up a page ....

Answer 17

? @amistre64

Answer 18

i was typing and went to move the mouse and lost what i had .... because it went back a page in the history ... whatever.

IQR mean is 21.5 , 22, 25
IQR mean is 6.5 , 9, 8

comparing the IQR allows us to avoid outliers skewing the data.

Answer 19

id say mean and median but thats just my thought and can be completely and utterly wrong

Answer 20

yeah, c is my pick ... but if its right i cant say with any degree of certainty

Answer 21

so your not certain c is correct @amistre64 but you would pick that ?

Answer 22

thats right, its my best educated guess. but still amounts to a guess. i never liked these types of problems.

Answer 23

ok thank you

Answer 24

may you make sure a few more are correct

Answer 25

@Mehek14 @amistre64