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Molodets [167]
3 years ago
14

How many people are between the ages of 20 and 49?

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
4 0
Just add the numbers of the groups 20-34 years and 35-49 years
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If data set A has a smaller standard deviation than data set B, what would be different about their distributions?
Aleksandr-060686 [28]

Answer:

Data set B would have flatter distribution with more data in each tail.

Step-by-step explanation:

We are given the following in the question:

Data set A has a smaller standard deviation than data set B.

\sigma_A < \sigma_B

Standard Deviation:

  • It is a measure of dispersion of data.
  • It tells us about how much the data deviates around the mean.
  • It tells us about the overall deviation of the data from the mean.
  • The standard deviation is small when the data are all close to the mean showing less variation.
  • The standard deviation is larger when the data values are farther away from the mean, showing more variation.

Since data A has less standard deviation than data B, then data B has a flatter graphical representation as more of the data are present on the tails.

8 0
3 years ago
Write an exponential model given the two points ​(10​,130​) and ​(11​,240​).
enot [183]

Answer:

  y = 130(24/13)^(x -10)

Step-by-step explanation:

The y-value changes by a factor of 240/130 = 24/13 for a unit change in the x-value. This means we can write the function as though it had an initial value of 130 and a growth factor of 24/13, translated 10 units to the right.

  y = 130(24/13)^(x -10)

_____

<em>Additional comment</em>

This can also be written in the form ...

  y = a·e^(kx)

where a=130·(24/13)^(-10) ≈ 0.28266, and k=ln(24/13) ≈ 0.61310

7 0
3 years ago
Jason jumped off of a cliff into the ocean in Acapulco while vacationing with some friends. His height above ocean measured in f
lbvjy [14]

Answer:

480 feet.

Step-by-step explanation:

We are told that the function h(t)=-16t^2+16t+480 models Jason's height above ocean measured in feet as a function of time and t is the time in seconds from jumping off.

To find the height of cliff we need to substitute t=0 in our given function as at t=0 we will get Jason's height above ocean which is same as the height of the cliff.

Upon substituting t=0 in our function we will get,

h(0)=-16(0)^2+16*0+480

h(0)=-0+0+480

h(0)=480

Since, the function gives Jason's height above ocean in feet, therefore, the cliff was 480 feet high.

8 0
3 years ago
Jack and Connor were splitting nachos. Jack ate of the
SashulF [63]
How many nachos is there to start with
6 0
3 years ago
What is the shape that has 4 vertices and 2 pairs of sides that are different lengths?
anyanavicka [17]
It a trapezoid

Hope this help :)
3 0
3 years ago
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