All you have to do is divide 38 divided by 5 which = 7 r 3
I hope this helps.
Have a awesome day. :)
Range is eleven median is 27
Answer:
a) 229 and 305 days
b) 229 days or less
c) 305 days or more
Step-by-step explanation:
The Empirical Rule(68-95-99.7 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:
Mean = 267
Standard deviation = 19
(a) Between what values do the lengths of the middle 95% of all pregnancies fall?_____________and___________days
By the Empirical rule, 95% of all pregnancies fall within 2 standard deviations of the mean.
So
267 - 2*19 = 229 days
to
267 + 2*19 = 305 days
(b) How short are the shortest 2.5% of all pregnancies?______days or less
95% of all pregnancies fall within 2 standard deviations of the mean. The other 5% are more than 2 standard deviations from the mean. Since the distribution is symmetric, 2.5% is more than 2 standard deviations below the mean(shortest 2.5%) and 2.5% is more than 2 standard deviations above the mean(longest 2.5%). So
267 - 2*19 = 229 days
c) How long do the longest 2.5% of pregnancies last?________days or more
Explanation in b)
267 + 2*19 = 305 days
Answer:
The missing number is 150
Step-by-step explanation:
45 + 5= ? -100
To carry out the problem we are going to call x to (?)
45 + 5= x -100
we see that we have a -100 of the second side of the equality, to get it out of there we can add 100 in both parts of the equality
45 + 5 + 100 = x -100 + 100
now we just solve and we have left
45 + 5 + 100 = x
As we see this is a common sum, by which we can already add it and obtain the value of x
150 = x
Answer: $17.1
Step-by-step explanation:
19% = 19/100 = 0.19
Convert to fraction
=19% of $90
=19/100 × 90
=0.19 × 90
=17.1
I hope this helps.
