Pleaseeee help meeeHow to solve this questions?(i) ?(ii) ?
1 answer:
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Answer:
65.3%
Step-by-step explanation:
Binomial distribution PMF below (along with a description)
the probabilty of getting 2, 3, or 4 successes in 5 trials is just
p(2)+p(3)+p(4)
p(2)= 5C2*.4²*(1-.4)³ = .3456
p(3)= 5C3*.4³*(1-.4)²= .2304
p(4)= 5C4*.4⁴*(1-.4)=.0768
.3456+.2304+.0768= .6528
In this question, you know that the machine packs 
of a box every 
of a minute. Since it is constant, you simply have to double the half a minute to a full minute and then also double the rate to get 
boxes packed per minute. And 
is equal to 