Sample 2 is a random sample from grades 11 and 12 and consists of the following scores: 84, 86, 87, 84, 86, 89, 90, 87, 87, 84, 86.
Choose the following statements that correctly compare the two samples.
Check all that are true.
A). Sample 2 shows 11th and 12th grade students, on average, did better.
B) . Sample 1 has a higher probability than Sample 2.
C). The measure of center is the same for both samples.
D). Sample 1 shows 9th and 10th grade students, on average, did better.
E). Sample 2 has a higher median score than Sample 1.
Answer:
E)- Sample 2 has a higher median score than Sample 1.
Step-by-step explanation:
For comparing both samples by the median, We are more clear that Sample 2 (grades of 11th and 12th) is better than Sample 1 (grades of 9th and 10th).
We didn't choose other options because neither only seeing the samples nor by measuring the probability of both samples We do a better comparison of both the samples.
Also by measuring the mean and median of the both given samples we get both Option C and D are incorrect.
Answer:
The number of hours each riders ride = 15 hours.
Step-by-step explanation:
19 riders = 11 days 21 hours to ride from St.Joseph to Sacramento
Let's find the number of hours taken.
1 day = 24 hours.
11 days = 11 times 24 = 264 hours
So, 11 days 21 hours = 264 + 21 = 285 hours
19 riders rode the same number of hours.
To find the each rider ride, we need to divide 285 by 19.
The number of hours each rider ride = hours.