Question

The reading speed of second grade students in a large city is approximately​ normal, with a mean of

9090

words per minute​ (wpm) and a standard deviation of 10 wpm. Complete parts​ (a) through​ (f).

Homework: Chapter 8 Section 1 Save 2 of 4 (3 complete) HW Score: 36.11%, 2.17 of 6 pts Score: 0 of 1 pt 8.1.21 Assigned Media is Question Help The reading speed of second grade students in a large city is approximately normal, with a mean of 90 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f). Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the probability a randomly selected student in the city will read more than 94 words per minute? € The probability is . (Round to four decimal places as needed.) Enter your answer in the answer box and then click Check Answer. 2 parts O Clear All remaining Check Answer

Answer 1

X is reading speed , XWN (909192) sneriance Standardization génes, Z = X-90 ~NIO, 1) es a required is PEX>94 ] 10 10 - P[ X-90 > 94-90 )= P(Z > 004] El-P[Z +0.4] , using standard normal ? 10.6554 e 0.3446 Ani CScanned with CamScanner