3 years ago

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Mathematics

1 answer:

Alexus [3.1K]3 years ago

7 0

Answer:

foodgnfnfnfd2vefvf3vedvwf wsvwsv

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The Highway Safety Department wants to study the driving habits of individuals. A sample of 121 cars traveling on the highway re

Ede4ka [16]

Answer:

{58.02007 , 61.97993]

Step-by-step explanation:

Data are given in the question

Sample of cars = n = 121

Average speed = sample mean = 60

Standard deviation = sd = 11

And we assume

95% confidence t-score = 1.97993

Therefore

Confidence interval is

$= [60 - \frac{1.97993 \times 11}{\sqrt{121} }] , [60 + \frac{1.97993 \times 11}{\sqrt{121} }]$

= {58.02007 , 61.97993]

Basically we applied the above formula to determine the confidence interval

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3 years ago

Wanda rode her bike 5km the first day and she rode her bike 10,000m the second day. How many meters, in total, did Wanda ride in

vladimir2022 [97]

Answer:

there are one thousand (1,000) meters in a kilometer. So, 5,000 plus 10,000 is 15,000 meters.

Step-by-step explanation:

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3 years ago

Find the measure of the missing angle in the quadrilateral

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Answer:

11) x=80

12) x=40

13) x=8

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4 years ago

What is 700* 508 * 667 = <br> How life??

denpristay [2]

Answer:

237185200

Step-by-step explanation:

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What is 9 times 2.75

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9 times 2.75 equals 24.75

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