Please help me ASAP

Mathematics

1 answer:

alisha [4.7K]3 years ago

8 0

Answer:

Step-by-step explanation:

Mean tells us the average (in this case, total marks/ total number of students).

Standard deviation tells us the spread of a set of data from its mean (how much it deviates from the mean).

Thus, standard deviation can be used to determine the consistency of a data. The smaller the standard deviation, the more consistent the data is.

Since 4S has the smallest standard deviation of 1, it shows the most consistent achievement in the test.

You might be interested in

Select the choice that has the correct area and perimeter for the figure .

laila [671]

Answer: B

Step-by-step explanation:

8 0

3 years ago

Which of the following best describes the change in the range when 13 is

svetoff [14.1K]

The answer is D). It increases by 13.
If you put the numbers in order from least to greatest.. 26,34,38,49,65,75,81
You will see the 26 is the smallest number and 81 in the highest number. The range between the two numbers is 55. To find the range you take the smallest number and subtract it from the biggest number. But when you add the number 13 to the problem then26 is no longer the smallest Number because 13 replaced it. So then you take 81 and subtract 13 from it and get 68. And then you take 55 and subtract it from 68 and come with 13. Which makes the answer D.

6 0

4 years ago

10 people who build at the same rate can frame a house in 6 days. What fractional part of a house can 4 people frame a house in

Alina [70]

10 people who build at the same rate can frame a house in 6 days. That means it will take one person $10\times6=60$ days to finish the house.