Answer:
3. The number of copies he made is 1.25 standard deviations more than the mean number of copies made by teachers.
Step-by-step explanation:
In statistics, a z-score is measurement that describes a value's relationship to the mean and allows us to compare the value and the mean. It tells us how many standard deviations above or below the population mean.
Mr. Thomas has a z-score of 1.25.
He made 782 copies last week. The statistic this is being compared to is the mean of 550 copies by teachers per week at Lamley High School.
Therefore, the best interpretation is Mr. Thomas made 1.25 standard deviations more than the mean number of copies. The correct answer is <u>choice 3.</u>
Let's make sure the other choices are incorrect.
- The first answer is incorrect because a z-score doesn't compare the exact values, but uses the standard deviation to compare.
- The second answer is incorrect because he made 782 copies, while the mean was 550. He made <u>more</u> copies, plus the z-score is positive.
- The fourth and fifth answers are incorrect because the z-score doesn't use the median to compare.
All u have to do is find what variable will make each statement true, I'll do one so u would get what I mean,
61. x + 13.5 < 19, this could be anything under 19 since it's supposed to be greater, I chose 5 + 13.5 < 19 which is 18.5 < 19
The number goes from 13.5 to 19 you could do it like decimals, start it from 13 then go on like this, 13,13.5,14,14.5,15,15.5,16,16.5,17,17.5,18,18.5,& 19.
Multiple 14.6 x 6.5 then multiply the answer to that by 6.5
The box-and-whisker plot of the data, showing the five-number summary, is shown in the image atatched below.
<h3>What is the Box-and-whisker Plot?</h3>
The box-and-whisker plot is a plot that displays the minimum, maximum, median, lower and upper quartile of a data, which is termed as the five-number summary of a data.
Given the data, 20, 23, 28, 14, 13, 24, 18, 11, find the five-number summary:
- Minimum - 11
- Lower Quartile - 13.5
- Median - 19
- Upper Qaurtile - 23.5
- Maximum - 28
Therefore, the box-and-whisker plot of the data, showing the five-number summary, is shown in the image atatched below.
Learn more about box-and-whisker ploton:
brainly.com/question/12343132
First you can add 50 dollars to 450 dollars which is 500 then divide that 500 by 2 and that is 250
