Answer:
9222521251
Step-by-step explanation:
+6261113051+
151232065+3
156
Answer:
you need to explain what the question is
Step-by-step explanation:
Answer:
8.25% is the interest rate on this account
Answer:
P(X<1200) is 0.8212
Step-by-step explanation:
Test statistic (z) = (X - mean)/sd
X is score of a tester = 1200
mean = 1497
sd = 322
z = (1200 - 1497)/322 = -297/322 = -0.92
The cumulative area of the test statistic is the probability that X<1200. The cumulative area is 0.8212.
Therefore, P(X<1200) = 0.8212