O A 2.67 O c. 322 OD. 3.76 2. The following table shows the number of pieces of

Question

O A 2.67 O c. 322 OD. 3.76 2. The following table shows the number of pieces of junk mail that arrives in Gary's malbox each aary Number of Pieces of Junk MailFrequency 16 What is the standard deviation for the number of pieces of junik mail received per da? O A. 0.91 B. 257 OC, 2.06 O D. 1.24 3. The following table shows the number of pieces of junk mail that arrives in Gar's malbox each day Frequency 14 16 12 Number of Pieces of Junk Mail What is the probability that 3 or fewer pieces of junk mail will be received today? O A. 0.62 O B. 0.32 O c. 0.45 O D. 0.56

Explanation / Answer

Question 1 and 2 are unclear.

ques 3. P(E) = Fvaourable / Total outcomes

3 or fewer pieces of junk = 2+14 = 16

Total = 50

P(E) = 16 / 50 = 0.32 i.e option B

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