Answer:
This answer is simple it's 1/25n⁶
Answer:
D
Step-by-step explanation:
Just help a friend
Answer:
Step-by-step explanation:
Let x be the random variable representing the algebra test scores of the students. Since it is normally distributed and the population mean and population standard deviation are known, we would apply the formula,
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = standard deviation
From the information given,
µ = 81.5
σ = 5.1
the probability that a student scores below 76.4 is expressed as
P(x ≤ 76.4)
For x = 76.4
z = (76.4 - 81.5)/5.1 = - 1
Looking at the normal distribution table, the probability corresponding to the z score is 0.023
For x = 8
z = (8 - 6)/1 = 2
Looking at the normal distribution table, the probability corresponding to the z score is 0.159
Therefore, the number of students that scored below 76.4 is
0.159 × 130 = 21 students
Basket 1: 8 total, 2 cranberry
Basket 2: 9 total, 6 cranberry
Probability of taking 2 cranberry from basket 1
2/8 = 1/4
Probability of taking 2 cranberry from basket 2
6/9 = 2/3
Combined probability:
1/4 * 2/3 = 2/12 = 1/6
