kittylover613
12.10.2019 •
Mathematics
on saturday, kira stood outside the bowling alley from the time it opened until the time it closed. she asked the age of every 20th person entering the bowling alley for the whole day,
data set: 1 5 10 10 11 12 12 12 12 12 13 16 35 36 64 69
7. is the data taken from this bowling alley a random sample? why or why not? give as many details as possible.
8. analysis of this data might encourage some people to infer that the following scenarios are possible. (choose all that apply.)
a) the bowling alley offers birthday party packages on the weekends.
b) the bowling alley hosts a youth league on saturdays.
c) seniors can bowl for free in the mornings.
d) there is an adults-only league in the evening.
e) this bowling alley has a "family-friendly" atmosphere.
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Ответ:
This is a random sample. She chose every 20th person, so she had a method to choosing her data. Since she chose every 20th person from the time it opened to close, there is no bias.
8. a, b,d,e
Step-by-step explanation:
a, b, and e seem to be fine because there are ages of 10, 11, and 12
d works because later in the sample, there are older ages
c does not work because there are no ages higher than 16 in the morning
Ответ: