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omeli [17]
3 years ago
12

A B C D Please help me

Mathematics
1 answer:
pshichka [43]3 years ago
5 0

Answer:

b and d

Step-by-step explanation:

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The Precision Scientific Instrument Company manufactures thermometers that are supposed to give readings of 0°C at the freezing
Serjik [45]

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c) -1.75°

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

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 p-value, we get the probability that the value of the measure is greater than X.

Mean of 0, standard deviation of 1:

This means that \mu = 0, \sigma = 1

Find the reading that separates the bottom 4% from the others.

This is the 4th percentile, which is X when Z has a p-value of 0.04, so X when Z = -1.75.

Z = \frac{X - \mu}{\sigma}

-1.75 = \frac{X - 0}{1}

X = -1.75*1

X = -1.75

The correct answer is given by option c.

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2 years ago
What is the slope of the line?​
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Answer:

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5

Step-by-step explanation:

The first term is when n = 1.

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The second term is when n = 2.

(2)² + 20 = 24

The third term is when n = 3.

(3)² + 20 = 29

To find how many terms are less than 50, set n² + 20 equal to 50 and solve for n:

n² + 20 = 50

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Rounding down, n = 5 is the last term that is less than 50.

Therefore, there are 5 terms in the sequence that are less than 50.

6 0
3 years ago
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