Answer:
Option D)
The area below the standardized test score is 0.8413
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 85
Standard Deviation, σ = 5
We are given that the distribution of score is a bell shaped distribution that is a normal distribution.
Formula:
P(score is below 90)
Calculation the value from standard normal z table, we have,
Thus, the correct answer is
Option D)
The area below the standardized test score is 0.8413
Answer:
20 hours
Step-by-step explanation:
amount of birdhouse he can make in 1 hour
12/8= 1.5 bird house / hour
the amount of time it take to make 30 birdhouse
30 / 1.5 = 20 hours
Answer:
$540
Step-by-step explanation:
1 member 1 day :$480/80/20 = $3
12 members 15 day = $3 * 12 * 15 = $540
Hope this helps!!!
Answer:
For a 9000 people, the approximate number of people for whom the medicine will be effect is 8432 people
Step-by-step explanation:
Here we have probability is given by
Probability = Where:
Number of success = 3982 and
Number of trials = 4250. therefore;
Therefore, when the medicine is used on 9000 people, the approximate number of people for whom the medicine will be effect is given by;
or ≈ 8432 people.