Answer:
Step-by-step explanation:
Let x be a random variable representing the number of guesses made for the sat questions.
Since the probability of getting the correct answer to a question is fixed for any number of trials and the outcome is either getting it correctly or not, then it is a binomial distribution. The probability of success, p = 0.2
Probability of failure, q = 1 - p = 1 - 0.2 = 0.8
the probability that the number x of correct answers is fewer than 4 is expressed as
P(x < 4)
From the binomial distribution calculator,
P(x < 4) = 0.97
Answer:
x=30
Step-by-step explanation:
Answer:
fgi = 48
fgh = 24
hgi = 24
Step-by-step explanation:
Bisection divides an angle into two equal angles,
So,
4x - 20 = 3x - 9
4x - 3x = - 9 + 20
x = 11
fgi = 3x - 9 + 4x - 20
= 3x + 4x - 20 - 9
= 7x - 29
= 7 ( 11 ) - 29
= 77 - 29
fgi = 48
fgh = 3x - 9
= 3 ( 11 ) - 9
= 33 - 9
fgh = 24
hgi = 4x - 20
= 4 ( 11 ) - 20
= 44 - 20
hgi = 24