Answer:
b solid - liquid - gas
Step-by-step explanation:
Answer:
52%
Step-by-step explanation:
13/25=0.52
0.52 as a percent is 52%
The train has 12 carriages
Step-by-step explanation:
The total no. of seats =876
No. of seats per carriage =73
It is given that each carriage has equal seats
So,
Let the total no. of carriages be x
According to the given information,
x = 12
Hence the number of carriages is 12
To know more about numbers,
brainly.com/question/11793415
Answer:
B
Step-by-step explanation:
When the arrow is going to the right on the number line you know that x is less than the answer and since the circle is filled in, it is less than or equal to.
Answer:
b. There is roughly a 99.7% chance that the resulting sample proportion will be between 0.066 and 0.294 of the true proportion.
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
Proportion
A proportion has
How likely is the resulting sample proportion to be between 0.066 and 0.294 (i.e., 6.6% to 29.4% African American)?
This is the pvalue of Z when X = 0.294 subtracted by the pvalue of Z when X = 0.066. So
X = 0.294
has a pvalue of 0.9985
X = 0.066
has a pvalue of 0.0015
0.9985 - 0.0015 = 0.9970
So the correct answer is:
b. There is roughly a 99.7% chance that the resulting sample proportion will be between 0.066 and 0.294 of the true proportion.