STA2023 FALL 2017 ONLINE (CRN 11765) uiz: Chapter 6 Quiz Sub his Question: 2 pts

Question

STA2023 FALL 2017 ONLINE (CRN 11765) uiz: Chapter 6 Quiz Sub his Question: 2 pts 8 of 12 (5 complete) This Quiz: 22 ptsp Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard deviation of 1 00 Find the probability that a randomly sele thermometer reads between 1.14 and 0 25 and draw a sketch of the region. Sketch the region. Choose the correct graph below OA. c. 114 025 -1.14 0.25 1.14 0.25 The probability is L Round to four decimal places as needed) Click to select your answer(s) spent 25 hours working assignments and the Study Plan

Explanation / Answer

(i) Correct option: C

(ii) To find P(-1.14 < X < 0.25):
Case 1: For X from - 1.14 to mid value:

Table of Area Under Standard Normal Curve gives area= 0.3729

For X from mid value to 0.25:
Table gives area = 0.0987

So,

P(-1.14 < X < 0.25) = 0.3729 + 0.0987 = 0.4716

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