HOPE THIIIISSS HELLLPSSSS
The empirical rule states that in a normal distribution,
68% of data is within 1 std deviation of the mean
95% of data is within 2 std deviation of the mean
99.7% of data is within 3 std deviation of the mean
In this case 95% of the cases would be within two std deviations of the mean
mean - 8 and mean + 8
72 - 8 = 64 and 72 + 8 = 80
then 95% of the scores are between 64% and 80% on the test.
Answer:
143 yds^2
Step-by-step explanation:
Answer:
91
Step-by-step explanation:
85=
then multiply the 4 over and subtract 80, 87, and 82 to find x which gives you 91
Answer:
It was in the watwr for 6 seconds and out for 6 seconds
Step-by-step explanation: