Answer:
Step-by-step explanation:
<u>Total frequencies:</u>
Median group is the containing the middle - 25th and 26th frequencies. This is the 11-15 interval.
<u>Estimated median formula:</u>
- Estimated Median = L + ((n/2) − B)/G* w, where
- L - lower class boundary of the group containing the median = 10.5
- n - total number of values = 50
- B - cumulative frequency of the groups before the median group = 6 + 15 = 21
- G - frequency of the median group = 20
- w - group width = 5
<u>Substitute values and work out the number:</u>
- Estimated Median = 10.5 + (50/2 - 21)/20*5 = 11.5
I think he is not correct because there is negative number so it can't be greater than one
Answer:
Step-by-step explanation:
9. (2, -2) (1,0) (3,0) shade in and connect the points making it look like a 'U'
10. (-3, 1) (-4, -1) (-2,-1) not shaded and connect points making it look like ^
11. (2,-2) (1,-3) (3,-3) (0,-6) (4,-6) not shaded and connect points making it look like ^
12. (3, -1) (2,-2) (4,-2) (1,-5) (5,-5) not shaded and connect points making it look like ^
sorry for not showing the work, giving the points was the easiest way to give you the answers(:
A hypothesis testing is a statistical inference that uses data from a sample to draw conclusions.
<h3>What is hypothesis testing?</h3>
It should be noted that hypothesis testing simply means a statistical act where an assumption is made regarding a parameter.
In this case, a hypothesis testing is a statistical inference that uses data from a sample to draw conclusions. The null hypothesis predicts no effect while the alternative hypothesis states the research predictions.
Learn more about hypothesis on:
brainly.com/question/11555274