(i) p2 - 10 p + 25
3622
factorise the following
Answers
Answered by
0
Answer:
yThis is a classic example of finding mean and standard deviation using Z values.
From this page find the Z value corresponding to 31% area under the curve and 92% (100-8) percent area under the curve.
Math Is Fun Virtual Manipulative
Note: You'll probably be given tables to lookup in your quizzes.. they're a bit confusing. But you might as well learn how to use it.
As you know:
Z=X−μσZ=X−μσ
Put in X and Z values values twice, you'll have two linear equations. Solve them and the answer is yours!
Similar questions
History,
1 month ago
Computer Science,
1 month ago
Science,
2 months ago
Social Sciences,
2 months ago
Science,
8 months ago
Math,
8 months ago
Math,
8 months ago