Answer:
2/5
Step-by-step explanation:
By subtracting 130, 35, and 74 from the total of 400, you arrive at 160 left. Next, simplify this fraction by finding the greatest common divisor to get 2/5!
Response:
477
Detailed explanation:
Provided information:
Number of trials (n) = 500
Mean (m) = 0
Standard deviation (s) = 1
how many readings fall within +/- 2.000 deg F of the mean value
Mean of 0 and standard deviation of 1
P(-2 ≤ x ≤ 2)
Utilizing the Z probability calculator:
P(x ≤ 2) = 0.97725;
P(x ≤ - 2) = 0.02275
Thus:
P(x ≤ 2) - P(x ≤ - 2) = 0.97725 - 0.02275 = 0.9545
Accordingly, number of readings in 500 trials:
0.9545 multiplied by 500 equals 477.25
≈ 477 values
P(volleyball and baseball) = 4/200 x 100 = 2%
P(volleyball or baseball) = P(volleyball ∪ baseball) = P(volleyball) + P(baseball) - P(volleyball and baseball) = 12% + 15% - 2% = 25%.
Thus, 25% of students participate in either volleyball or baseball.
