Calculating probability of successes in independent trails

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Reference no: EM1318424

1) Assume that P(E) = 0.76, P(F) = 0.45, and P(E and F) = 0.32. Compute P(E or F)?

2) Assume that events E and F are independent. Additionally, P(E) = 0.45 and P(F) = 0.2. Find out P(E and F)?

3) Assume that P(E) = 0.59 and P(F\E) = 0.45 What is P(E and F)?

4) Given same values n=20, p=0.6, and x=17, calculate probability of x successes in n independent trails of experiment.

5) Find out the area under standard normal curve that lies to left of z = - 3.49

6) Find out the area under the standard normal curve to left of z = - 2.94 or to the right of z = 2.94

7) Determine the value of Z_0.15

8) Assume a simple random sample of size n=36 is obtained from population with μ=64 and σ=18. What is P( < 62.6)?

A nationwide study in 2003 indicated that about 60% of college students with cell phones send and get text messages with their phones. Assume a simple random sample of n = 1136 college students with cell phones is obtained.

9) Explain sampling distribution of, sample proportion of college students with cell phones who send or receive messages.

10) Find out the probability that 665 or fewer college students in sample send and receive text messages with their phones? Is this result unusual?

Reference no: EM1318424

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