Answer:
0.9936 is the probability that the student will fail.
Step-by-step explanation:
We are given the following information:
We treat adult guessing correct answer as a success.
P(guess correct answer) = 0.2
Then the number of correct guesses follows a binomial distribution, where
where n is the total number of observations, x is the number of success, p is the probability of success.
Now, we are given n = 10
The student needs atleast 6 correct answer to pass the test. We have to calculate the probability that the student will fail.
We have to evaluate:
0.9936 is the probability that the student will fail.
Width of the rectangle is 1 unit
Step-by-step explanation:
- Step 1: Let the length of the rectangle be x. Then the width = x - 5. Find dimensions of the rectangle if its area = 6 sq. units
Area of the rectangle = length × width
6 = x (x - 5)
6 = x² - 5x
x² - 5x - 6 = 0
x² - 6x + x - 6 = 0 (Using Product Sum rule to factorize)
x(x - 6) + 1(x - 6) = 0
(x - 6)(x + 1) = 0
x = -1, 6 (negative value is neglected)
x = 6 units
x - 5 = 1 unit
Didnt feel like doing them all , i only attempted to answer the first one which is " a " ( -6 ) hope i helped :)