Answer:
Step-by-step explanation:
-x^3 I think is the answer
Answer:
2 miles = 3520 yards
Step-by-step explanation:
1 mile = 1760 yards
2 miles = 3520 yards
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