Can anyone please give me the answers?

Mathematics

1 answer:

zhenek [66]4 years ago

4 0

The probability that you will win the $5 price is 1/16

Chances to pick a specific color

1/4x1/4x1/4=1/64

Chances that all balls are the same color=

chances of all red +chances of all green......

1/64+1/64+ 1/64+1/64=4/64=1/16

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Assume that the random variable X is normally distributed, with mean μ = 110 and standard deviation σ = 20. Compute the probabil

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Answer:

P(X > 126) = 0.2119

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 110, \sigma = 20$