Answer: b
i did it in my head and it will be too hard to tell you guys sorry
Its already fully simplified.
Answer:
550.92
Step-by-step explanation:
plz mark brainliest even if im wrong, i really need this, and if im wrong tell me im wrong so I cant correct it
None of them match the answer is really (-2,2), (-4,2), and (-2,8).
Answer:
About 99.7% of births would be expected to occur within 51 days of the mean pregnancy length
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Standard deviation = 17.
About what percentage of births would be expected to occur within 51 days of the mean pregnancy length?
51/17 = 3.
So, within 3 standard deviations of the mean.
About 99.7% of births would be expected to occur within 51 days of the mean pregnancy length
