# Question: Find the probability that a piece of data picked at

Find the probability that a piece of data picked at random from a normal population will have a standard score (z) that lies to the left of the following z-values

a. z = 2.10

b. z = 1.20

c. z = 3.26

d. z = 0.71

a. z = 2.10

b. z = 1.20

c. z = 3.26

d. z = 0.71

## Answer to relevant Questions

Understanding the z notation, z(a), requires us to c. z(100 — 001) d. z (0.025) — z (0.975) know whether we have a z-score or an area. Each of the following expressions uses the z notation in a variety of ways, some ...Find the normal approximation for the binomial probability P(x = 4, 5), where n = 14 and p = 0.5. Compare this to the value of P(x = 4, 5) obtained from Table 2. In reference to Applied Example 7. 3 on page 316: a. Explain why the numerical values on this table do not form a sampling distribution. b. Explain how this repeated gathering of data differs from the idea of repeated ...a. What is the total measure of the area for any probability distribution? b. Justify the statement “ becomes less variable as n increases.” b. Find mean for each of the 100 samples. c. Using the 100 sample means, construct a histogram, find mean , and find the standard deviation sx. d. Compare the results of part c with the three statements made in the SDSM.Post your question