36, 43, 50, 57, 64
36 and 64 are two standard deviations out, so the empirical rule tells us 95% of scores will fall here with a normal distribution
Answer: B.
Step-by-step explanation: The probability that a student is 15 years old includes those who are only 15: 450 students. This means that of 1,500 there are 450 students who are 15. The probability is set up as: 450/1,500 or 0.30.
Answer:
6 kw are used each hour
Step-by-step explanation:
E = P t
E/t = P
66 kwh /11h = 6 kw
75*3=225+1=226=226/3
hope that helps
