Answer:
4.5 or 1 1/8
Step-by-step explanation:
2 1/4 is a full box to back 1/2 of the flour you need to divide 2 1/4 in half
Half of 2 is 1 & half of 1/4 is 1/8
Your answer is 65
Step-by-step explanation:
You need to divide 585 by 9 the answer is 65
Answer: in 95% of races, his finishing time will be between 62 and 64 seconds.
Step-by-step explanation:
The empirical rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean . The empirical rule is further illustrated below
68% of data falls within the first standard deviation from the mean.
95% fall within two standard deviations.
99.7% fall within three standard deviations.
From the information given, the mean is 63 seconds and the standard deviation is 5 seconds.
2 standard deviations = 2 × 0.5 = 1
63 - 1 = 62 seconds
63 + 1 = 64 seconds
Therefore, in 95% of races, his finishing time will be between 62 and 64 seconds.
The answer should be 23. Not sure if you have multiple choices, or have to show the work, but 23 is the answer.