1.

Use divisibility test to find which of the FG numbers are divisible by 18?​

Answer»

Answer:

This 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!



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