Answer:
27
Step-by-step explanation:
15 + 12 = 27
Allie would have read 27 books in total after being in the book club for 12 months.
Answer:
Step-by-step explanation:
Answer is 30
Answer:
9
Step-by-step explanation:
just too the quiz on edge
Let the time taken to finish the test be x.
P(50 < x < 60) = P(x < 60) - P(x < 50) = P(z < (60 - 60)/10) - P(z < (50 - 60)/10) = P(z < 0) - P(z < -1) = P(z < 0) - (1 - P(z < 1)) = P(z < 0) + P(z < 1) - 1 = 0.5 + 0.8413 - 1 = 0.3413