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earnstyle [38]
3 years ago
7

Which of the following z-scores indicates the most extreme observation?

Mathematics
1 answer:
UNO [17]3 years ago
5 0

Answer:

Step-by-step explanation:

Normally Z scores in a std normal distribution curve lie between -3 and 3 comprising more than 99% of total area.

Any entry outside (-3,3) can be considered as an extreme observation.

Here we have hence a) -4.3 is the most extreme observation.

-------------------------

Given that 84 separates the lowest 75% of the scores from the highest 25% of the scores,

This means 84 is the 75th percentile and similarly 65 is the 25th percentile.

Thus we have 84 has the percentile rank of 75

Option C

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Alekssandra [29.7K]

Answer:

99.9

Step-by-step explanation:

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3 years ago
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Oxana [17]
Im not sure what you are asking, but for a probability tree, you have the total # of something at the very top of the tree, next it branches out into groups, and those groups represent something like colored marbles or something... and to find percent you divide the total number like the number of marbles bye 100 and multiply that number bye the thing that you're trying to get job percent like a color of marbles, I hope this helped...
7 0
3 years ago
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Solve for x: 3x − 2(6 − x) = 7x + 2(5 + x) − 6
Ugo [173]
X=-4 I hope this helps

3 0
4 years ago
Please help if you understand!! I hope everyone has a great day or is having a great day​
Monica [59]

Answer:

Firstly, notice the relationship the two triangles have. They have conjoining ends that form vertical angles (looks like a middle x). Vertical angles are equivalent in measure of degrees.

Secondly, notice that the triangle on the right side is a right triangle. One of its angle's measurements are also given; 40 degrees. If you know that the sum of a triangle's angles equal 180 degrees, then simply subtract the known angles measurements from 180.

180-(90+40)=  180-130=50.

Therefore, the vertical angles measurement is equivalent to 50 degrees.

Apply the principle of the sum of all angles in a triangle equivalent to 180 degrees to the left triangle, and you will be able to find the measurement of the "?" angle.

180-(50+25)= 180-75=105

SO HERE IS YOUR ANSWER= 105 degrees is the value of the angle marked with a "?"

I hope you are having a great day too;)!

8 0
3 years ago
Read 2 more answers
A political action committee is interested in the proportion of all registered voters who will vote "Yes" on a measure to expand
kirza4 [7]

Answer: parameter: The proportion of registered voters who will vote Yes on the measure.

Sample: The 1000 registered voters who participated in the study.

Statistic: The proportion of the 1000 registered voters that were surveyed who will vote Yes on the measure.

Variable: Yes or No for each registered voter

Population: All registered voters in the US

Data: The list of Yes and No answers that were given by the 1000 participants in the study.

Step-by-step explanation:

Definitions of the given terms:

  • Population: Large groups of individuals having similar characteristics as per the researcher's point of view.
  • Sample: It is a subset of the population used to represent it.
  • Parameter: Measure of particular characteristics in the population.
  • Statistic: Measure of particular characteristics in the sample.
  • Variable: Characteristics that vary.
  • Data: A collected information facts and statistics.

Hence, by using the above definitions, we have

  • Parameter: The proportion of registered voters who will vote Yes on the measure.
  • Sample: The 1000 registered voters who participated in the study.
  • Statistic: The proportion of the 1000 registered voters that were surveyed who will vote Yes on the measure.
  • Variable: Yes or No for each registered voter.
  • Population: All registered voters in the US.
  • Data: The list of Yes and No answers that were given by the 1000 participants in the study.
4 0
3 years ago
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