2 years ago

Answer as a decimal with four decimal places.

Mathematics

1 answer:

frosja888 [35]2 years ago

3 0

Answer: 0.8333

Step-by-step explanation:

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Emma will roll two number cubes, labeled 1 through 6. She will record the sum of the two numbers after each roll. She will roll

coldgirl [10]

Answer:

Emma should expect the sum to be equal to five "60 times"

Step-by-step explanation:

Please kindly check the attached file for explanation

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3 years ago

Suppose a researcher is interested in understanding the variation in the price of store brand milk. A random sample of 36 grocer

liberstina [14]

Answer: ($3.055, $3.205)

Step-by-step explanation:

Given : Significance level : $\alpha: 1-0.95=0.5$

Critical value : $z_{\alpha/2}=1.96$

Sample size : n= 36

Sample mean : $\overline{x}=\$\ 3.13$

Standard deviation : $\sigma= \$\ 0.23$

The confidence interval for population mean is given by :_

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

$\text{i.e. }\$\ 3.13\pm (1.96)\dfrac{0.23}{\sqrt{36}}\\\\\approx\$\ 3.13\pm0.075\\\\=(\$\ 3.13-0.075,\$\ 3.13+0.075)=(\$\ 3.055,\$\ 3.205)$

Hence, the 95% confidence interval to estimate the population mean = ($3.055, $3.205)

3 0

3 years ago

What is the probability that a number selected is at random from the numbers 1- 15 is a prime number?

Basile [38]

So there is 15 different outcomes which we want 6 of them 2, 3, 5, 7, 11 all prime numbers so a 6/15 chance we’d pull a prime number
6/15 or 40% chance we’d pull a prime number out of the bag

7 0

3 years ago

The Flushing River has a current of 3mph. A motorboat takes as long to go 12 miles downstream as to go 8 miles upstream. What is

Nata [24]

Answer: 1.3

Step-by-step explanation:

12-8 = 4

4/3 = 1.3

3 0

2 years ago

Maths help please!!!!!!!!

boyakko [2]

Answer: The answer is a

Step-by-step explanation:

Let's solve for f.

fx=2x^3−3x^2

Step 1: Divide both sides by x.

fx/x =2x^3−3x^2/x

f=2x^2−3x

Answer:

f=2x^2−3x

6 0

3 years ago