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nataly862011 [7]

3 years ago

11

Does an interval variable have a true zero point?

1 answer:

lisov135 [29]3 years ago

5 0

Does an interval variable have a true zero point.

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eliot counts a group of coins staring with the quarters his sister counts the same coins she counting the pennies wiil they get

zalisa [80]

Answer: No, they would not get the same amount.

Step-by-step explanation:

Let the number of coins be x

Eliot counts a group of coins staring with the quarters.

As we know that

$1\ quarter=25\ cents$

So, Number of amount Eliot counts with the quarters is given by

$25\times x=25x\ cents$

Similarly, His sister counts the same coins she counting the pennies .

As we know that

$1\ penny=1\ cent$

So, Total amount his sister counts with the pennies is given by

$1\times x=x\ cents$

But we can see that

$25x\ cents\neq x\ cents$

Hence, No, they would not get the same amount.

7 0

3 years ago

Add 7 3/10+4 4/15. Simplify the answer and write it as a mixed number.

aev [14]

Answer:

⟾ $11 \frac{17}{30}$

Step-by-step explanation:

⟾ $7 \ \frac{3}{10} + 4 \ \frac{4}{15}$

⟾ $\frac{73}{10} + \frac{64}{15}$

⟾ $\frac{219 +128 }{30}$

⟾ $\frac{347}{30}$

Now write as mixed fraction,

⟾ $11 \ \frac{17}{30}$

Hope it's helps you

5 0

3 years ago

Can someone please explain - Thanks!

Reil [10]

They're not congruent.

If you count the numbers between AC and BE, they're different.

AC - goes from -7 to 0, which is 7 spaces
BE - goes from -2 to 6, which is 8 spaces

4 0

4 years ago

Read 2 more answers

1. Suppose an online retailer has determined that if a potential customer spends more than 5 minutes on their site, that the pro

vredina [299]

Using the binomial distribution, it is found that there is a 0.056 = 5.6% probability that more than 7 will make a purchase.

<h3>What is the binomial distribution formula?</h3>

The formula is:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$C_{n,x} = \frac{n!}{x!(n-x)!}$

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

In this problem:

There are 12 customers, hence n = 12.

The probability of any of them making a purchase is of p = 0.4.

The probability that more than 7 will make a purchase is given by:

P(X > 7) = P(X = 8) + P(X = 9) + P(X = 10) + P(X = 11) + P(X = 12).

Hence:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 8) = C_{12,8}.(0.4)^{8}.(0.6)^{4} = 0.042$

$P(X = 9) = C_{12,9}.(0.4)^{9}.(0.6)^{3} = 0.012$

$P(X = 10) = C_{12,10}.(0.4)^{10}.(0.6)^{2} = 0.02$

$P(X = 11) = C_{12,11}.(0.4)^{11}.(0.6)^{1} \approx 0$

$P(X = 12) = C_{12,12}.(0.4)^{12}.(0.6)^{0} \approx 0$

Then:

P(X > 7) = P(X = 8) + P(X = 9) + P(X = 10) + P(X = 11) + P(X = 12) = 0.042 + 0.012 + 0.02 + 0 + 0 = 0.056.

0.056 = 5.6% probability that more than 7 will make a purchase.

More can be learned about the binomial distribution at brainly.com/question/24863377

3 0

2 years ago

What value of n makes the equation true -2n+1.8=3.2

Tamiku [17]

Answer:

n = -0.7

Step-by-step explanation:

-2n+1.8=3.2

subtract 1.8 from both sides of the equation:

-2n = 1.4

divide both sides by -2:

n = -0.7

4 0

3 years ago