# The monthly utility bills in a city are normally distributed with a mean of \$100 and a standard deviation of \$12. Find the probability that a randomly selected utility bill will be between \$90 and \$120.Distribution type: ________________   Probability: ________________

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The monthly utility bills in a city are normally distributed with a mean of \$100 and a standard deviation of \$12. Find the probability that a randomly selected utility bill will be between \$90 and \$120.

Distribution type: ________________   Probability: ________________

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Step 1

Let x is random variable.

Step 2

Given:

Distribution type: Normal distribution

Mean=\$100

Standard deviation=\$12

Step 3

The probability that a randomly selected utility bill will... help_outlineImage Transcriptionclose90- д Х— д 120- д Р(90 <х <120)— P о о о 120 100

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