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nikitadnepr [17]
3 years ago
7

Several students were asked how many blocks they walk from home to school each day results are shown in the line plot below M

iguel walks the shortest distance jila Watch the longest distance how much farther Then Miguel does jila walk?

Mathematics
1 answer:
tester [92]3 years ago
7 0

Answer:

Miguel walks 4.25 blocks more than Jila.                      

Step-by-step explanation:

Line plot shown in the question represents the distance traveled by the students from their houses to their school.

From the line plot,

Distance between 1 and 2 = \frac{1}{4} = 0.25 blocks

Shortest distance traveled by Miguel = 0.25 blocks

Longest distance traveled by Jila = 4.5 blocks

Difference between the distances covered by Miguel and Jila = 4.5 - 0.25

= 4.25 blocks

Therefore, Miguel walks 4.25 blocks more than Jila.

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4 years ago
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2 years ago
A doctor is interested in people who have experienced an unexplained episode of vitamin D intoxication. She took a SRS of size 1
Mila [183]

Answer:

(a) (2.573, 3.167) is the 99% confidence interval for \mu the true mean calcium level of the population of people who experienced an unexplained episode of vitamin D intoxication.

(b) There is a 99% probability that the average calcium level of all people who have experienced an unexplained episode of vitamin D intoxication is in the interval.

Step-by-step explanation:

If we have a random sample of size n from a normal distribution with mean \mu and standard deviation \sigma, then we know that \bar{X} is normally distributed with mean \mu and standard deviation \sigma/n. Therefore we can use (\bar{X}-\mu)/\frac{\sigma}{\sqrt{n}} as a pivotal quantity.

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(b) We found a 99% confidence interval for the true mean calcium level of the population of people who experienced an unexplained episode of vitamin D intoxication. Therefore, there is a 99% probability that the average calcium level of all people who have experienced an unexplained episode of vitamin D intoxication is in the interval.

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Help me please, what are the like terms?
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