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May someone please help??

May someone please help??-example-1

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4 votes

Answer:

your inequality signs are correct so i'll skip those

-2.06, .9803

.67, .7486

Explanation:

1.)

To do this one you need to standardize x by subtracting the mean and dividng by the standard deviation

(1000-3262)/1100= -2.056 which i will round to -2.06

with this as our z value use the table to find the associated probability

.9803

2.)

Same process

(4000-3262)/1100=.67

which has a probability of .7486

User Saurabhshcs
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