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3 years ago

I like Pho shudbixbuebxubeuxbuebxube

Mathematics

2 answers:

pentagon [3]3 years ago

7 0

me to so we don’t know how long it is for you

user100 [1]3 years ago

4 0

Answer:

nice

Step-by-step explanation:

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How are angle 6, 4, and 6, 2 related?

Lisa [10]

The answer is D. None of these.

As answer A. would be angle 6,4 and 5,3
B. Angles 6,3 and 5,4
C. Angles 8,4 7,5 5,1 6,2

4 0

3 years ago

the graph shows the height of a pendant for a certain amount of time and days happy Monday everybody there may be a proportional

Alex Ar [27]

According to the given graph, the variables does not show a proportional relationship because they points do not form an straight line. Remember that the proportional relationship is represents by a straight line whcih passes through the origin.

<h2>Therefore, the hours and the height of snow do not show a proportional relationship.</h2>

4 0

11 months ago

What is -7b + 5b + 3b =

inysia [295]

Question

what is -7b + 5b + 3b =

Answer:

Step-by-step explanation:

-7b + 5b + 3b =

-2b + 3b =

8 0

3 years ago

A survey was conducted to determine the average age at which college seniors hope to retire in a simple random sample of 101 sen

tatyana61 [14]

Answer:

96% confidence interval for desired retirement age of all college students is [54.30 , 55.70].

Step-by-step explanation:

We are given that a survey was conducted to determine the average age at which college seniors hope to retire in a simple random sample of 101 seniors, 55 was the average desired retirement age, with a standard deviation of 3.4 years.

Firstly, the Pivotal quantity for 96% confidence interval for the population mean is given by;

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

where, $\bar X$ = sample average desired retirement age = 55 years

$\sigma$ = sample standard deviation = 3.4 years

n = sample of seniors = 101

$\mu$ = true mean retirement age of all college students

<em>Here for constructing 96% confidence interval we have used One-sample t test statistics as we don't know about population standard deviation.</em>

<u>So, 96% confidence interval for the population mean, </u> $\mu$ <u> is ;</u>

P(-2.114 < $t_1_0_0$ < 2.114) = 0.96 {As the critical value of t at 100 degree

of freedom are -2.114 & 2.114 with P = 2%}

P(-2.114 < $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ < 2.114) = 0.96

P( $-2.114 \times {\frac{s}{\sqrt{n} } }$ < ${\bar X-\mu}$ < $2.114 \times {\frac{s}{\sqrt{n} } }$ ) = 0.96

P( $\bar X-2.114 \times {\frac{s}{\sqrt{n} } }$ < $\mu$ < $\bar X+2.114 \times {\frac{s}{\sqrt{n} } }$ ) = 0.96

<u>96% confidence interval for</u> $\mu$ = [ $\bar X-2.114 \times {\frac{s}{\sqrt{n} } }$ , $\bar X+2.114 \times {\frac{s}{\sqrt{n} } }$ ]

= [ $55-2.114 \times {\frac{3.4}{\sqrt{101} } }$ , $55+2.114 \times {\frac{3.4}{\sqrt{101} } }$ ]

= [54.30 , 55.70]

Therefore, 96% confidence interval for desired retirement age of all college students is [54.30 , 55.70].

7 0

3 years ago

Gerogia is selling ice cream from her store at the beach. She opens the day with 500 servings of ice cream. Durning the day she

hram777 [196]

Answer:

325

Step-by-step explanation:

65% of 500 is 325

5 0

3 years ago