Q14 3401 82.5 3500 More than 3500 Q15 3401 82.5 3500 3401 82.5 3579 Between 3500-3579 Q16 3401 82.5 3325 3401 82.5 3579 Between 3325-3579 Q17 15 3.5 20 More than 20 Q18 15 3.5 20 Less than 20 Q19 15 3.5 10 15 3.5 12 Between 10-12 Q20 15 3.5 15 15 3.5 20 Between 15-20 Question Answer (rounded to 3 decimal places) Explanation/Process / provide details of how you got this answer. Did you do any subtractions? A normal distribution has a mean of 50 and a standard deviation of 4. Solve the following three parts? 11. Compute the probability of a value between 44.0 and 55.0. (The question requires finding probability value between 44 and 55. Solve it in 3 steps. In the first step, use the above formula and x = 44, calculate probability value. In the second step repeat the first step with the only difference that x-55. In the third step, subtract the answer of the first part from the answer of the second part.) 12. Compute the probability of a value greater than 55.0. Use the formula and subtract the answer from 1. 13. Compute the probability of a value between 52.0 and 55.0. (The question requires finding probability value between 52 and 55. Solve it in 3 steps. In the first step, use the above formula and x-52, calculate probability value. In the second step repeat the first step with the only difference that x-55. In the third step, subtract the answer of the first part from the answer of the second part.) Page 2 of 3

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter1: Fundamental Concepts Of Algebra

Section1.4: Fractional Expressions

Problem 66E

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Related questions

Question

In order to find probability, you can use this formula in Microsoft Excel:
 The best way to understand and solve these problems is by first drawing a bell curve and
marking key points such as x, the mean, and the areas of interest. Once marked on the bell
curve, figure out what calculations are needed to find the area of interest.
 =NORM.DIST(x, Mean, Standard Dev., TRUE).
 When the question mentions “greater than” you may have to subtract your answer from 1.
 When the question mentions “between (two values)”, you need to do separate calculation for
both values and then subtract their results to get the answer.