Multiply 1.5 and 1 as fractions

1 answer:

8 0

So 1.5 means 1 and 1/2 or 2/2+1/2=3/2

and 1=x/x where x=x so 1 could be 1/1 or 3/3 or 2342/2432 and so on
for simplicity just use 1/1

to multiply fractions just multiply the top numbers by the top numbers and the bottom numbers with the bottom numbers so
3/2 times 1/1=(1 times 3)/(1 times 2) or the same thing since anything times 1 is the same thing so the answer is 3/2 or 1 and 1/2

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The combined math and verbal scores for females taking the SAT-I test are normally distributed with a mean of 900 and a standard

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Answer:

50% of females do not satisfy that requirement

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 900, \sigma = 200$