Question

Rewrite the 2nd sentence using a modal verb so that it has the same meaning as the first. One has been done for you.
It is essential to do all of the exercises.
You __________ do all of the exercise.
………...………………………………………………………………………………………[1]
b. Am I allowed to start the exam yet?
__________ start the exam yet?
……...…………………………………………………………………………………………[1]
3. Rewrite the sentences in the passive voice.
1. The lawyer is preparing some important documents for the trial.
………………………………………………………………………………………………...[1]
6
2. She hasn't watered these plants for over a week.
………………………………………………………………………………………………...

Answer 1

Answer:

5 is added to 100 observations each.  

So =500=(5×100) is added.  

Then divided by 100. ie 5.  

So mean increases by 5 to become 55.

S.D will remain same because every observation increased by 5 and mean also increased by 5.  

( standard deviation is the squareroot of the difference of mean and each observation divided by the number of observations )

(55,10)

Explanation:

Answer 2

Answer:

cant understand the q.

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