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categoryالرياضيات schoolبكالوريوس event_available2026-07-15

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Question 12 (1 point) Max makes a salary of $55,000. In his industry, salaries follow a normal distribution $40,000, standard deviation - $5,000). Determine the z-score of Max's (mean salary. - State the Excel function only. Check your spelling. Question 13 (1 point) It is known that Long Life bulbs have a normal distribution, and last an average of 500 hours, with a standard deviation of 100 hours. What is the probability of a bulb burning between 525 and 550 hours? State the Excel function only. Check your spelling. A Question 14 (1 point) The distribution of the annual incomes of a group of middle management employees approximates a normal distribution with a mean of $37,200 and a standard deviation of $800 How many standard deviations from the mean income is $36 6607 pptx Question 14 (1 point) The distribution of the annual incomes of a group of middle management employees approximates a normal distribution with a mean of $37,200 and a standard deviation of $800. How many standard deviations from the mean income is $36,660? State the Excel function only. Check your spelling. A Question 15 (1 point) Given human height average 65 inches and standard deviation 2.5 inches, if your 2- score is 2.5, what % of the population is shorter than you? State the Excel function only. Check your spelling. A/

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