Question

http://prntscr.com/j1vf88

Answer 1

@Vocaloid

Answer 2

@dude @Shadow

Answer 3

this is partly opinion-based but you would identify the highest value, the lowest value, and decide which intervals would be appropriate based on that

in your example, the lowest # is 5 and the highest # is 35 so you could go up by units of 5, for example

first interval: 5-10
second interval: 11-16
third interval: 17-21, etc.

then, you would sort each data value into its appropriate interval and provide the corresponding frequencies

Answer 4

http://prntscr.com/j1wuz0

Answer 5

well they show the same data and spread, one of them shows the individual data points, the other one only shows how many fall within each interval

Answer 6

http://prntscr.com/j1wvwl

Answer 7

any thoughts? do you think the sample might be biased?

Answer 8

I think it is biased

Answer 9

good, the sample is biased (people who use a swimming pool might more inclined to favor building a new pool) so the sample might not lead to valid inferences

Answer 10

http://prntscr.com/j1wxjk

Answer 11

I'm not exactly sure what they're looking for here but since the variance is small compared to the mean, making predictions is valid/can be done? :S

Answer 12

http://prntscr.com/j1x5aj

Answer 13

the entire population of flying squirrels is too big to measure so a sample must be taken. if the sample is representative of the population (not biased), statistics about the sample can be used to draw conclusions about the population

Answer 14

http://prntscr.com/j1x73t

Answer 15

let's try to visually estimate where the centers are for both graphs

Answer 16

http://prntscr.com/j1x8t6

Answer 17

1. which one is more spread out? (has the bigger difference between the max/min values?)
2. which one has the higher median?

Answer 18

1. Box plot 1

Answer 19

good so you can say the box plot 1 has the higher spread since the box is wider and the range is higher

Answer 20

Box plot 1 has the higher median

Answer 21

keep in mind the median is this line in the middle:

Answer 22

then again the question is only asking about spread so you might not need to mention the median

Answer 23

last oneL
http://prntscr.com/j1xd1p

Answer 24

just gotta add up the values and divide by how many there are

pay attention to the left column, for example, in the second row the values are 13, 15, 15, 15, 17, and 18, NOT 3,5,5,5,7,8

Answer 25

okay ty