katie is going to purchase a table for 255 a rug for 158 and 4 chairs for 97 each how much money will she spend all together
2 answers:
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Answer:
x = 3
Steps:
There you go!
The empirical rule says that approximately 68% of any normal distributed data set lies within one standard deviation of the mean.
The same rule states that about 95% lies within two standard deviations of the mean. Using this rule, and the fact that any normal distribution is symmetric about its mean, you have