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(1) The scores ou au aptitude test for fuger dexterity are normally distributed with meau 250 andstandard deviation 65.a) What is the probability that a persou selected at random will score between 240 aud 270 on thetest?b) Test is given to a random sample of seven people. What is the probability that the meau score,I for the sample will be between 240 and 270?

(1) The scores ou au aptitude test for fuger dexterity are normally distributed with-example-1

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SOLUTION

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Write the given parameters


\begin{gathered} \operatorname{mean}(\mu)=250 \\ \text{Standard deviation(}\sigma)=65 \end{gathered}

STEP 2: Represent the probability required


\begin{gathered} Let\text{ X represents the scores which }is\text{ given to be normally distributed }with\text{ mean of 250 and }s.d\text{ of 65} \\ \text{Then, we are }required\text{ to find }P(240<p>STEP 3: Find the probability</p>[tex]undefined

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