Answer:
Step-by-step explanation:
See the attached image
Using the normal distribution, it is found that 0.26% of the items will either weigh less than 87 grams or more than 93 grams.
In a <em>normal distribution</em> with mean
and standard deviation
, the z-score of a measure X is given by:
- It 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, which is the percentile of X.
In this problem:
- The mean is of 90 grams, hence
.
- The standard deviation is of 1 gram, hence
.
We want to find the probability of an item <u>differing more than 3 grams from the mean</u>, hence:



The probability is P(|Z| > 3), which is 2 multiplied by the p-value of Z = -3.
- Looking at the z-table, Z = -3 has a p-value of 0.0013.
2 x 0.0013 = 0.0026
0.0026 x 100% = 0.26%
0.26% of the items will either weigh less than 87 grams or more than 93 grams.
For more on the normal distribution, you can check brainly.com/question/24663213
Answer:
C. 6
Step-by-step explanation:
So it says read less thann 25 books --> that means the numbers are 13,14,14,16,19,21,21,22,23, and 24 --> a total of 10 numbers
Then it says read more than 35 books --> that means the numbers are 37,41,42,43 --> a total of 4 numbers
Now, it says how many more --> that means you subtract 4 by 10 = 10 - 4 = 6
Therefore the answer is 6 more students read less than 25 books than read more than 35 books.
This doesn’t make any sense
Answer:
She drove 12 hours
5+4+3=12
Step-by-step explanation: