Answer:
9, -4, 3b, and 7a
Step-by-step explanation:
Answer:
Nine of the times for the first race were at least 16 seconds
Step-by-step explanation:
Here we have from the scatter plot, the times are given as
Time Frequency
19 2
18 2
17 2
16 3
15 1
Therefore, total number of times that are above 16 seconds in the first race is
3 + 2 + 2 + 2 = 9
Therefore, the first option is correct
Answer:
23.58-th
Step-by-step explanation:
The standard deviation of company B's profit is:

Let X be the profit correspondent to the 14th percentile of company A's profit.
The z-score for 14th percentile of a normal distribution is roughly -1.08.
The z-scores for X in companies A and B are:

The z-score for X in company B's profit distribution is -0.72, which corresponds to the 23.58-th percentile.
Answer:
C
Step-by-step explanation:
The distance of it is half of an inch.