The trapezoid has one pair of parallel sides.
Answer:
10
Step-by-step explanation:
25% is the same as 0.25 so multiply 40 by 0.25.
Answer:
0.80
Step-by-step explanation:
The z-score is found from the formula ...
Z = (X -μ)/σ
Z = (77 -73)/5 = 4/5 = 0.80
Jennifer's Z-score was 0.80.
Answer:
95% Confidence interval: (39.43, 61.58)
Step-by-step explanation:
We are given the following in the question:
Sample mean,
= $50.50
Sample size, n = 15
Alpha, α = 0.05
Sample standard deviation = 20
95% Confidence interval:
Putting the values, we get,
95% Confidence interval: (39.43, 61.58)
Answer:
Steve is 18 and and his mother is 47.
Step-by-step explanation:
if you add those numbers you'll get 65