Ab m qui2.cilapter 5 quiz
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much like sound bytes of news stories, statistical studies are often reduced to one-or two- sentence stat-bytes. for the following stat-byte, discuss what crucial
information is missing and what more you would want to know before acting on the study.
a newspaper reports that over 60% of adults avoid visits to the dentist because of fear
ly plan
which of the following is crucial information that you would want to know before acting on the study? select all that apply.
debook
xt
a. the questions respondents were asked
b. the size of the sample
c. the goal of the study
d. how respondents were chosen
i e. the variable of interest
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tivity manua
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3
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y/x=18

step-by-step explanation:

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

~

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64