My dividend is 8 times as large as my divisor. i am a even number less than 15 what quotient am i?

Mathematics

2 answers:

lara31 [8.8K]3 years ago

8 0

Answer:

Quotient:8

Step-by-step explanation:

We are given that my dividend is 8 times as large as my divisor.

Let the divisor is 8 hence, the divident will be 8x.

Now i am a even number less than 15.

So if the dividend is divided by the divisor by division rule than we get the quotient as 8 always no matter what is the value of x.

As 8x÷x=8.

Hence, the quotient is 8 and remainder is zero.

since it is always a factor of x.

Hence, the value of quotient is 8 ( which is a even number less than 15).

Pavel [41]3 years ago

5 0

I think it is 8 because it is an even number

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In an examination of purchasing patterns of shoppers, a sample of 16 shoppers revealed that they spent, on average, $54 per hour

Lesechka [4]

Answer:

$54-1.64\frac{21}{\sqrt{16}}=45.39$

$54 +1.64\frac{21}{\sqrt{16}}=62.61$

So on this case the 90% confidence interval would be given by (45.39;62.61)

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X=54$ represent the sample mean

$\mu$ population mean (variable of interest)

$\sigma=21$ represent the sample standard deviation

n=16 represent the sample size

Solution to the problem

The confidence interval for the mean is given by the following formula:

$\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (1)

Since the Confidence is 0.90 or 90%, the value of $\alpha=1-0.9=0.1$ and $\alpha/2 =0.05$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.05,0,1)".And we see that $z_{\alpha/2}=1.64$