Answer:
The answer is 140
Step-by-step explanation:
You multiply 400 by 0.35 to get your answer. So, it would be 140 :) Hope i helped!
Three students want to estimate the mean backpack weight of their schoolmates. To do this, they each randomly chose 8 schoolmates and weighed their backpacks. Then as per the given sample data,
(a) The sample means of the backpacks are: 6.375,6.375,6.625
(b) Range of sample means: 0.25
(c)The true statement is: The closer the range of the sample means is to 0, the less confident they can be in their estimate.
For the first sample, mean= 6.375
For the second sample, mean= 6.375
For the third sample, mean= 6.625
Range of sample means=Maximum Mean- Minimum Mean
= 6.625 - 6.375
= 0.25
The students will estimate the average backpack weight of their classmates using sample means, the true statement is:
The closer the range of the sample means is to 0, the more confident they can be in their estimate.
Learn more about range here:
brainly.com/question/24326172
#SPJ1
<u>Answer:</u>
<u>Step-by-step explanation:</u>
Let's take two points on a line. (2,0) and (0,2).
Now, determine the rise and run.
Slope = Rise/Run
=> 2/2
<u>Conclusion:</u>
Therefore, the slope is 1.
Hoped this helped.
Answer:
8/11
Step-by-step explanation:
3 mechanics and 8 electricians = 11 employees total
if one selected at random the possibility of the employee to be an electrician is 8/11