For example
1>x>3
says x is less than 1 and greater than 3
Answer:
a. 4.33.
Step-by-step explanation:
If there is only one correct answer out of four alternatives, the expected proportion of correct answers is p =0.25
Sample size (n) = 100 questions
The standard deviation of a proportion 'p' is given by:

Applying the given data:

If X is the number of correct responses in 100 guesses, the standard deviation of X is:

The standard deviation of X is 4.33 questions.
Answer:
-18
Step-by-step explanation:
The answer is -18 because a negative plus a positive is always a negative.
B. If Karl runs 1 mi, then he runs 5280 ft.
If A then B and if B then C, then A-->C