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3 years ago

A computer randomly selects a number from the given set.

Mathematics

2 answers:

sp2606 [1]3 years ago

6 0

4/9 is the answer because there is 9 numbers and 4 of them are less then 10.

Triss [41]3 years ago

5 0

Answer:

the probability of selecting a number less than 10 is 4/9, or 0.44.

Step-by-step explanation:

There are 4 numbers less than 10, out of a total of 9 numbers.

Thus, the probability of selecting a number less than 10 is 4/9, or 0.44.

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Make a mapping diagram for the relation. {(-3, 1), (0, 6), (3, 2), (5, -1)} A. B. C. D.

Sidana [21]

Answer:

Step-by-step explanation:

5 0

3 years ago

A random sample of n measurements was selected from a population with unknown mean μ and known standard deviation σ. Calculate a

vivado [14]

Answer:

The 95% confidence interval for μ for the given situation is between 87.49 and 94.51.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96\frac{20}{\sqrt{125}} = 3.51$

The lower end of the interval is the sample mean subtracted by M. So it is 91 - 3.51 = 87.49

The upper end of the interval is the sample mean added to M. So it is 91 + 3.51 = 94.51

The 95% confidence interval for μ for the given situation is between 87.49 and 94.51.

5 0

3 years ago

Read 2 more answers

TO TRAIN FOR A MARATHON,

Lelu [443]

That's easy.

There are 14 days in 2 weeks.

So we would need to multiply 9.5 x 14.

And that would be 133.

5 0

2 years ago

A rule for creating a pattern is given in equation form below.

svetoff [14.1K]

ANSWER B

16=22-6

Do the math on paper and you should get it.

6 0

3 years ago

Read 2 more answers

Derrick had $100 to spend at a sporting goods store. He bought a pair of shorts for $11.36 and a pair of athletic shoes for $47.

olga_2 [115]

Answer:

$40.82

Step-by-step explanation:

Subtract $11.36 from $100 and you'll get $88.64 and then just subtract $47.82 and the answer is $40.82. Not sure if u know how to subtract but just line the decimals up and take the smaller number away from the bigger one so in this case it would just be 100-11.36=88.64 and since he spent more money it would be 88.64-47.82=40.82

6 0

2 years ago

Read 2 more answers