3 years ago

Find the value of x. Only enter the number. Round to the nearest tenth.

Mathematics

1 answer:

Alchen [17]3 years ago

4 0

48S tep-by-step explanation:

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Find the proportion of heights that are within 1 standard deviation of the sample mean and also the proportion that are within 2

Bess [88]

For a normal distribution <em>only, </em>for a population, not for particular sample.

proportion between 1 standard deviation, independent of μ and σ , is given by:
P(Z<1)-P(Z<-1)
=0.841345-0.158655=0.682689
=0.68 (to two places of decimal)

proportion between 2 standard deviations, independent of μ and σ , is given by:
P(Z<2)-P(Z<-2)
=0.977250-0.022750=0.954500=0.95 (to two places of decimal)

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2 years ago

A total of 3 cards are chosen at random, without replacing them, from a standard deck of 52 playing cards. What is the probabili

Minchanka [31]

Answer: $\dfrac{1}{5525}$