Answer
$P(x\geq 12)$ = 0.8867
Work Step by Step
n = 20, p = 0.7
Want to find $P(x\geq 12)$
$P(x\geq 12)$
= $1 - P(x < 12)$
= $1 - P(x \leq 11)$
= $1 - 0.1133$
= 0.8867
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 6 - Section 6.2 - Assess Your Understanding - Vocabulary and Skill Building - Page 344: 26
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