. Makayla walks for exercise. She wants to walk a total of 6 miles. On Monday, she walked 2 ⅚ miles. On Tuesday, she walked 1 ⅓
1 answer:
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Answer:
0.058 is the required probability.
Step-by-step explanation:
We are given the following PMF in the question:
x: 0 1 2
p(x): 0.24 0.15 0.61
Z can take values 0, 1, 2, 3, 4.
We have to compute the value of P(Z=0)
Thus,
Answer:
C. 5 weeks.
Step-by-step explanation:
In this question we have a random variable that is equal to the sum of two normal-distributed random variables.
If we have two random variables X and Y, both normally distributed, the sum will have this properties:
To calculate the expected weeks that the donation exceeds $120, first we can calculate the probability of S>120:
The expected weeks can be calculated as the product of the number of weeks in the year (52) and this probability:
The nearest answer is C. 5 weeks.