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slamgirl [31]
3 years ago
10

Consider the normal distribution curve.

Mathematics
1 answer:
IrinaVladis [17]3 years ago
3 0

Answer:

The variance of the data is 49.

The median is 64.

The data point 50 is two standard deviations away for the mean.

Please mark Brainliest!

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Public health officials believe that 90% of children have been vaccinated against measles. A random survey of medical records at
Vikentia [17]

Answer:

The answer to the question is;

Yes, it is very significant as the number of of observed vaccinated children is below the number of actually vaccinated children by 78.

Step-by-step explanation:

The result of the survey of more than 13,000 children indicate that only 89.4 % had actually been and the P-value indicate that the chance of having a sample proportion of 89.4 %  vaccinated is 1.1 %.

P is low at 0.011 for which however the proportion of those vaccinated is between 0.889 and 0.899 using a 95% confidence interval, whereby the decrease from 90 % believed to 89.9 % is small, albeit it depends on the size of the population.

At 89.4 %, in a sample of 13,000, the number of children expected to have been vaccinated but were missed is equal to 90 - 89.4 = 0.6 % = 0.006

Therefore the children missed = 78 children which is significant.

5 0
4 years ago
Find the distance between -4 and 10 on a number line.
Alex

Answer:

14

Step-by-step explanation:

|-4-10| = 14

6 0
3 years ago
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F(x) = -3x + 1 when x=-1​
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Answer:

Step-by-step explanation:

f(-1)= -3(-1)+1 (you basically just sub in the -1 whenever you see an x. Therefore f(-1) = 3+1 = 4

7 0
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7 0
3 years ago
Isaac is purchasing two pairs of shoes—one pair for $37.00 and the second pair for $42.00. The state sales tax applied to Isaac’
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