page 15 English (en)- Tamilchelvy A/P Maripan ACADEMY PTDBAS 4/17 Business Decis

Question

page 15 English (en)- Tamilchelvy A/P Maripan ACADEMY PTDBAS 4/17 Business Decision Making Dashboard My courses PTDBAS 4/17 Business Quiz 2 BDNM Quiz 2 Qu Question 16 Not yet answered A manufacturing company produces 20 items each day. The manager of the company estimates that about 1% of the items they produce are defective. What is the variance for the number of defective items produced each day? Marked out of 3 Select one O a. 0.138 O b. 0.198 O c. 0.200 O d. 0.141 Previous page Next page @@-@ee

Explanation / Answer

Solution: Its answer is B.

proportion of defective = 0.01

n =20

Variance can be calculated as

= np(1-p)

= 20 * 0.01 *(0.99)

= 0.198

So its answer is B i.e. 1.98

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