1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sergeu [11.5K]
3 years ago
13

Suppose that for a randomly selected high school student who has taken a college entrance exam, the probability of scoring above

650 is 0.30. A random sample of n = 10 students was selected. The mean μ of X, the number of students in the sample who have scores above 650 is ______.
Mathematics
1 answer:
Sophie [7]3 years ago
5 0

Answer:

3.0

Step-by-step explanation:

n=10

p=0.30

mean=np=10X0.3 = 3

That is it.

You might be interested in
What integer is equivalent to93/2
Setler79 [48]
Answer:
46 with a remainder of .5
8 0
3 years ago
Read 2 more answers
Find a number that us 5 times as much as 4 divided by 2
Alexeev081 [22]
4 divided by 2 is equal to 2. A number that is 5 times that would be 10, which is 2x5.

Not sure if it's correct, but I hope it helps :)
8 0
2 years ago
. In the U.S., from 2004−2015, the correlation coefficient for the relationship between the size of a cell phone data plan, x, a
bonufazy [111]

Answer: strong positive correlafion between data plan size 'x' and number of text messages sent 'y'

Step-by-step explanation:

'R' in statistics is used to denote correlation Coefficient. The correlation Coefficient is a value which ranges between -1 to +1. It tells us the level of relationship or correlation which exists between the relative movement of two variables, in this case the relationship between data plan size and the number of text messages sent in the US. R value of 0 depicts that no relationship exists between the two variables, R value closer the R value is to +1 and - 1 depicts the strength of positive and negative correlation of the two variables respectively.

A R value of +0.97 in the context above, depicts a strong positive correlation between data plan size and number of text messages sent in the US. That is large data size usually corresponds to large number of text messages and vice versa.

4 0
3 years ago
When I think of a number, double it, then add seven, I get 25. what number did I think of?
sweet [91]

Answer:

9

Step-by-step explanation:

25-7=18

half of 18 is 9

5 0
3 years ago
Read 2 more answers
Please help me! You just tell me what to put in the boxes please,
olganol [36]

Answer:

what boxes? XD  need a link to da picture UWU

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What direction is it going like is it going clockwise or counter clockwise and what is the degree is it like is it 90 or 180 or
    9·1 answer
  • Factor completely: 9x3 + 9x2y - 4x - 4y
    13·2 answers
  • I dint understands how to do this
    13·2 answers
  • Someone plz help me with this???
    5·1 answer
  • ABC and ADC are triangles. The area of triangle ADC is 52m^2
    5·1 answer
  • Which of the following could be the function graphed?
    10·1 answer
  • How to graph -7x+25y=231
    15·1 answer
  • When a food distributor considers changing the products it markets in the southern states because of an increasing percentage of
    13·1 answer
  • The ratio of men to women in a certain factory is 3 to 4. There are 210 men
    12·1 answer
  • A can in the shape of a cylinder has a diameter of 6 centimeters and a height of 10 centimeters witch measurement is closest to
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!