Answer:
1. The mean for Group A is less than the mean for Group B
2. The median for Group A is less than the median for Group B.
3. The mode for Group A is less than the mode for Group B.
Step-by-step explanation:
1. To find the mean for Group A, you use the formula: Total sum/Total frequency.
To find the total sum, you multiply the frequency(how many times the given number is repeated) with the given numbers.
0 × 0 = 0
1 × 5 = 5
2 × 4 = 8
3 × 1 = 3
4 × 0 = 0
5 × 0 = 0
Total Sum: 5 + 8 + 3 = 16
Total frequency: 5 + 4+ 1 = 10
= 1.6
To find the mean for Group B, you repeat everything above.
0 × 0 = 0
1 × 3 = 3
2 × 2 = 4
3 × 4 = 12
4 × 0 = 0
5 × 1 = 5
Total Sum: 3 + 4 + 12 + 5 = 24
Total frequency: 3 + 2 + 4 + 1 = 10
= 2.4
2. I can't explain it but I'm certain that it is correct.
3. The most repeated number for Group A is 1, it is repeated 5 times, while the most repeated number in Group B is 3, it is repeated 4 times.
Answer:
100 and 330
Step-by-step explanation:
134/200 is a equivalent fraction
A = 34 x 2 = 68
b = 56/2 = 28
hope it helps
Answer:
17. D
18. C
Step-by-step explanation:
For both of these questions, you only need a general understanding of what rotation, translation, and dilation do. That is sufficient to let you choose the correct answer.
<h3>17.</h3>
The coordinates of Y are both negative, so it is a point in quadrant III on the graph. Rotating a point in quadrant III 270° clockwise will rotate it through quadrants II and I to quadrant IV, where it will be to the right and below the origin. Translation 9 units right and 5 units down will put it farther to the right and farther below the origin, still in quadrant IV.
As you know, translation right 9 units adds 9 to the x-coordinate. Translation down 5 units subtracts 5 from the y-coordinate. That means the coordinates of Y' must have x > 9 and y < -5. There is only one answer choice like that:
D. Y'(11, -8)
__
<h3>18.</h3>
Dilation about the origin multiplies each coordinate by the scale factor. It does not change the quadrant of a point on the graph. The original coordinates of R are (negative, positive), so it is in quadrant II. The dilated point will still be in quadrant II, but will be closer to the origin. Both coordinate values will change.
R' = (1/3)R = (1/3)(-2, 3) = (-2/3, 3/3)
R' = (-2/3, 1) . . . . . matches choice C