Answer: nearest degree is 40
Step-by-step explanation:
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.
Answer:
1
Step-by-step explanation:
you asked to type 1
Your answer will be 7.50. What I did was take 1.25 and times it by 6.
(6x-2)(6x-2) = 36x-12x-12x+4 = 36x+4
