Posted by **Justina** on Sunday, August 7, 2011 at 8:36pm.

Records show that 29% of all payments to a mail-order company are submitted after the due date. Suppose 50 payments are submitted this week. Let r be a random variable that represents the number of payments that are late. Use the normal approximation to the binomial to estimate P(r > 20).

a. 0.0307

b. 0.0594

c. 0.9406

d. 0.9564

Using the information from problem, use the normal approximation to the binomial to estimate P(20< r< 25).

a. 0.0591

b. 0.0585

c. 0.0431

d. 0.0304

- Math -
**Carson**, Wednesday, March 28, 2012 at 8:27pm
0.0594

- Math -
**Anonymous**, Thursday, July 18, 2013 at 3:06pm
b) 0.0591

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