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ICE Princess25 [194]
3 years ago
13

Please help I really need it!! Answer for both

Mathematics
1 answer:
bezimeni [28]3 years ago
8 0

Answer:

(-11, -4)

Step-by-step explanation:

this is the answer

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Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard devia
lesya692 [45]

Answer: P(x > - 0.23) = 0.41

Step-by-step explanation:

Since we are assuming that the readings at freezing on a batch of thermometers are normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = the readings at freezing on a batch of thermometers.

µ = mean temperature reading

σ = standard deviation

From the information given,

µ = 0°C

σ = 1.00°C

the probability of obtaining a reading less than -0.23°C is expressed as

P(x > - 0.23)

For x = - 0.23

z = (- 0.23 - 0)/1 = - 0.23

Looking at the normal distribution table, the probability corresponding to the z score is 0.41

7 0
3 years ago
Out of 18 people in a room, 2 have red hair. What is the probability that a person picked at random from the room does NOT have
Mariana [72]

Answer :

  • Total number of people in the room = 18

  • Number of people with red hair = 2

  • Number of people not with red hair = 18 - 2 = 16

  • Probability of picking a person who doesn't have red hair = \sf\dfrac{Number\:of\:favourable\:outcomes}{Total\:outcomes}

Probability = 16/18

Reduce the fraction with 2

Probability = 8/9

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3 years ago
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Find the area of each parallelogram or triangle
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Answer:

Step-by-step explanation:

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I WILL MARK BRAINLIEST!! Split 84 into two parts so that one part is five times the other part. I need the smaller number and th
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Answer:

70 and 14

Step-by-step explanation:

You divide 84 into 6 parts, so you get 70 and each part is 14, 14x5=70 then if you add 14 its 84.

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