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prisoha [69]
3 years ago
8

Can someone help me with #4 please URGENT‼️

Mathematics
1 answer:
lesya [120]3 years ago
4 0
Describe um it’s a line and has a F
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A survey asked 36 students to choose their favorite type of music from the choices of rock, pop, and country. The results of the
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Answer:the answer is b

Step-by-step explanation:

8 0
3 years ago
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261,177 is farther or closer to 300000
lutik1710 [3]
Actually is close, like rounding anything above 5 is rounded up, 5 and below stays the same. It's 261,177 that means it is around 40,000 away from 300,000. Therefore is it closer
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3 years ago
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Find the Z-scores that separate the middle 61% of the distribution from the area in the tails of the standard normal distributio
professor190 [17]

Answer:

Z-scores between -0.86 and 0.86 separate the middle 61% of the distribution from the area in the tails of the standard normal distribution

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.

Middle 61%

Between the 50 - (61/2) = 19.5th percentile and the 50 + (61/2) = 80.5th percentile.

19.5th percentile.

Z with a pvalue of 0.195. So Z = -0.86

80.5th percentile.

Z with a pvalue of 0.805. So Z = 0.86.

Z-scores between -0.86 and 0.86 separate the middle 61% of the distribution from the area in the tails of the standard normal distribution

8 0
2 years ago
Scientists are preparing two satellites to be launched. The equation y=400x represents the number of miles, y, that the satellit
Andrews [41]

Answer:

2400 miles

Step-by-step explanation:

So the first equation is pretty straight forwards, it's in the slope-intercept form y=mx+b where m is the slope, and b is y-intercept, since as x increases by 1, the value y increases by m, which by definition is what the slope is, so m is the slope. In this context the slope is how many miles in x hours. So Space Explorer B flies 400 miles per hour. The amount of miles that Space Explorer A flies per mile can be calculated by dividing the 36400 by the 13 hours it had to travel. This gives you 2800 miles. So to find how many fewer miles Space Explorer B travels than Space Explorer A you subtract the 2 slopes. 2800 - 400 = 2400. So Space Explorer B travels 2400 fewer miles than Space Explorer A

5 0
2 years ago
Pls someone help how to divide decimal this is just how I look on the pic
bulgar [2K]

Say you have 7 divided by 3.5   

7/3.5       If you set up like this 3.5 into 7, you move the decimal over once in 3.5

So you now have 35 into 7.   Next you have to move the decimal on the seven however many times you moved the first decimal. So 7 is now 70

Next you just do simple division 35 into 70     =2

3 0
3 years ago
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