All categories

3 years ago

ASAP PLEASE

Mathematics

1 answer:

Lemur [1.5K]3 years ago

7 0

1) The normal human temperature is 37.2.
In here, they're asking about the temperature with one standard deviation below, so 1*0.2 = 0.2 below.
So it's 37.2 - 0.2 = 37
2) Same thing, but 3 deviations above so 0.2*3 = 0.6 above.
So it's 37.2+0.6 = 37.8
3) About 32% of the people have a temperature above 37.

Hope this Helps! :)

You might be interested in

Marissa is 8 years older than lance. next year, lance will be 3 times lances age. how old is lance?

olga2289 [7]

Answer:

The answer would be 3

Step-by-step explanation:

This is because, hope this makes sense, Shes 8 years older and the answer choices were: 3, 4, 11 and 12, well 3+8=11 and it says next year she will be 3 times his age, still being 8 years older, next year lance will be 4 and whats 3 years times 4, twelve. And whats 8 years older than four 12. Hope this makes sense but it has to be 3.

8 0

3 years ago

Solve the attached question . No Spam! Step by step explanation needed!

Kisachek [45]

Your answer is attached.

Hence, COT A (Option A) is the right answer.

Hope it helps uh!

3 0

3 years ago

Read 2 more answers

The Highway Safety Department wants to study the driving habits of individuals. A sample of 37 cars traveling on a particular st

kodGreya [7K]

Answer:

90% confidence interval for the true mean speed of all cars on this particular stretch of highway is [68.9517 miles per hour , 72.4483 miles per hour].

Step-by-step explanation:

We are given that a sample of 37 cars traveling on a particular stretch of highway revealed an average speed of 70.7 miles per hour with a standard deviation of 6.3 miles per hour.

Firstly, the pivotal quantity for 90% confidence interval for the true mean is given by;

P.Q. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample average speed of cars = 70.7 miles per hour

s = sample standard deviation = 6.3 miles per hour

n = sample of cars = 37

$\mu$ = true mean speed

Here for constructing 90% confidence interval we have used One-sample t test statistics as we know don't about population standard deviation.

So, 90% confidence interval for the true mean, $\mu$ is ;

P(-1.688 < $t_3_6$ < 1.688) = 0.90 {As the critical value of t at 36 degree of

freedom are -1.688 & 1.688 with P = 5%}

P(-1.688 < $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ < 1.688) = 0.90

P( $-1.688 \times {\frac{s}{\sqrt{n} } }$ < ${\bar X-\mu}$ < $1.688 \times {\frac{s}{\sqrt{n} } }$ ) = 0.90

P( $\bar X-1.688 \times {\frac{s}{\sqrt{n} } }$ < $\mu$ < $\bar X+1.688 \times {\frac{s}{\sqrt{n} } }$ ) = 0.90

90% confidence interval for $\mu$ = [ $\bar X-1.688 \times {\frac{s}{\sqrt{n} } }$ , $\bar X+1.688 \times {\frac{s}{\sqrt{n} } }$ ]

= [ $70.7-1.688 \times {\frac{6.3}{\sqrt{37} } }$ , $70.7+1.688 \times {\frac{6.3}{\sqrt{37} } }$ ]

= [68.9517 miles per hour , 72.4483 miles per hour]

Therefore, 90% confidence interval for the true mean speed of all cars on this particular stretch of highway is [68.9517 miles per hour , 72.4483 miles per hour].

The interpretation of the above interval is that we are 90% confident that the true mean speed of all cars will lie between 68.9517 miles per hour and 72.4483 miles per hour.

8 0

3 years ago

1. Which ordered pair is a solution of the equation shown?

ValentinkaMS [17]

The answer is (-1, 1).

the point in in (x, y) format. where x is along the horizontal(left and right) and y is along the vertical (up and down).

7 0

4 years ago

Can you guys help. thank you.

Tcecarenko [31]

Answer:

1000

Step-by-step explanation:

100 x 10

4 0

3 years ago

Read 2 more answers