11. You pay $24.50 for 10 gallons of gasoline and one

there are 4 performers who will present their comedy acts this weekend at a comedy club. how many different ways are there to sc

DiKsa [7]

There should be 6 per number
ex.
1234
1243
1342
1324
1432
1423

8 0

2 years ago

At Jack’s birthday party, 23 of the kids had balloons. 14 of the balloons were red. What fraction of the kids at the party had r

Nonamiya [84]

14/23. You can’t simplify it anymore. It is also equivalent to about 61% (60.86% to be exact)

7 0

2 years ago

The class is 60% women and 10% of the women have blond hair, so blond women comprise 60% × 10% = 6% of the class.

Tatiana [17]

Answer:

Conversion and substitution

Step-by-step explanation:

One way to find out if the expression is true, we can convert all the percentages into their decimal equivalence.

60% = 0.6

10% = 0.1

6% = 0.06

Now let's substitute the values.

0.06 = 0.6 x 0.1

0.06 = 0.06

Since 0.06 is equal 0.06, this then proves that it is true.

6 0

3 years ago

What is the quatient of (×3+6×2+11×+6)÷(×2+4×+3

lapo4ka [179]

Answer:

=21+11x

Step-by-step explanation:

3 0

3 years ago

A forester studying the effects of fertilization on certain pine forests in the Southeast is interested in estimating the averag

ahrayia [7]

Answer:

$P(-2 \leq \bar X -\mu \leq 2)$

If we divide both sides by $\frac{\sigma}{\sqrt{n}}$ we got:

$P(\frac{-2}{\frac{4}{\sqrt{9}}}\leq Z \leq \frac{2}{\frac{4}{\sqrt{9}}})$

And we can use the normal distribution table or excel to find the probabilites and we got:

$P(-1.5 \leq Z \leq 1.5)= P(Z$ Step-by-step explanation:

Previous concepts

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".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the area of a population, and for this case we know the distribution for X is given by:

$X \sim N(M,4)$