Answer:
a) Between 74 and 90
b) 81.86% of the scores are between 78 and 90
Step-by-step explanation:
a) According to the Empirical Rule, in a normal distribution, 95% of the data are within 2 standard deviations of the mean. Therefore, the range that 95% of the scores fall in is between 82-4(2)=74 and 82+4(2)=90.
b) The percent of scores that are between 78 and 90 is: normalcdf(lower,upper,μ,σ) = normalcdf(78,90,82,4) = 0.8185946784 ≈ 0.8186, or about 81.86% of the scores.
The answer is 110 degrees because a right angle is 90 and thats obtuse so its more than 90 and 110 is the only one more than 90
The answer is C because when adding two negatives it equals a positive
3/4 is equal to .75 .................................
Me after hearing someone cough on my $8 round trip flight to Italy.
