The third quartile of this data set is B. 24.
The answer is B.
f(x)= cos(x-90) = -cos(90-x)
(If you know how to, draw the CAST chart)
-cos(90-x)= -sin(x)
Sub. x=0, -sin(0)= 0
Answer:
c) 0.181.
Step-by-step explanation:
There is a common practice in statistics that we use the estimation from a large sample and expands it to the population.
Suppose i ask 1000 people who reside in Buffalo, New York, if they are Buffalo Bills fans. Suppose 900 say they are. So i can say that 90% of all residents of Buffalo are Bills fans.
In this problem, we have that:
On the first day of class, she counts 105 students enrolled, of which 19 are repeating the class. The university enrolls 15,000 students.An estimate of the population proportion repeating the class is given by:
The proportion of 19 of 105 is expanded to the 15,000 students.
19/105 = 0.181
So the correct answer is:
c) 0.181.
Answer:
Step-by-step explanation:
<u>Given the data set of 15 where:</u>
- Mean = 7
- Median = 6
- Mode = 5
- The minimum is 1 and the maximum is 10
<u>As per given we conclude</u>
- The set will have 7 numbers before 6 and 7 numbers after
- Sum of 15 numbers is 15*7 = 105
- The most used number is 5
a) <u>Possible set is:</u>
- 1, 5, 5, 5, 5, 5, 5, 6, 9, 9, 10, 10, 10, 10, 10
b) <u>Add number 20, the set will be:</u>
- 1, 5, 5, 5, 5, 5, 5, 6, 9, 9, 10, 10, 10, 10, 10, 20
<u>The mean is different as we have now more numbers with different sum:</u>
- (105 + 20)/(15 + 1) = 125/16 = 7.8125
<u>The median is different now and moves to the right as 20 added to the far right:</u>
<u>The mode stays same as still most used number is 5:</u>
Answer:
D
Step-by-step explanation:
