In math class, Mrs. Carlton picks a student to write a homework problem on the board. The probabilities that given students will
be selected are shown below.
P(Brad) = 0.64
P(Emily) = 0.01
P(Steven) = 0.04
P(Sarah) = 0.31
Which statements are true? Choose all that are correct.
P(Brad) = 0.64
P(Emily) = 0.01
P(Steven) = 0.04
P(Sarah) = 0.31
Which statements are true? Choose all that are correct.
1 answer:
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Answer:
(a) mean = 377.5ml. standard deviation = 4.33
(b) 0.333
(c) 384.25 ml
Step-by-step explanation:
(a)The mean:
The standard deviation:
(b)
(c)P(x > m) = 0.95
So the volumn of shampoo should be 384.25ml to exceed 95% of containers.