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
HACTEHA [7]
3 years ago
6

Samples of size n = 600 are taken from a telephone survey, and the mean age is taken for each sample. What is the distribution o

f the sample means?
A. skewed to the left
B. normal (approximately)
C. not enough information provided
D. skewed to the right
Mathematics
1 answer:
Nonamiya [84]3 years ago
6 0
The answer in B. For complicated statistics reasons the Central Limit Theorem states that, for sample sizes of above 25 (or 30 depending on the text!), the distribution of sample means is approximately normal regardless of the distribution of the parent distribution
You might be interested in
(+×9)(×-2) can some one solve it
marshall27 [118]
X2 - 2x + 9x - 18
X2 + 7x - 18
4 0
3 years ago
Write the equation of the line graphed below in slope-intercept form (y=mx+b)?​
ioda
Y = -1/2x - 1

Tell me if you need explanation
7 0
3 years ago
How to change 2% as a decimal
zaharov [31]
So 2% is 2/100. That would be 0.02.
8 0
3 years ago
Explain number 2 & 3 please
VLD [36.1K]
1. 3x - 2y = 0 => y = 3/2x
4x + 2y = 14<=> 4x + 2*(3/2x) = 14<=> 7x = 14<=> x = 2 & y = 3
2.3p + q = 7=> q = 7 - 3p
2p - 2q = -6<=> 2p - 2*(7-3p) = -6<=> 2p - 14 + 6p = -6<=> 8p = -6 + 14 = 8<=> p = 1 & q = 4
3.3x - 2y = 1=> x = (1+2y)/3
8x + 3y = 2<=> 8*(1+2y)/3 + 3y = 2<=> 8*(1+2y)/3 - 2 = -3y<=> 3*(8*(1+2y)/3 - 2) = -3*(3y)<=> 8*(1+2y) - 6 = -9y<=> 8 + 16y - 6 = -9y<=> 2 = -25y<=> y = -2/25 & x = 7/25
7 0
4 years ago
A store manager is marking down chess boards from $25 to $14. What percentage is the discount?
Alborosie
Remember: when calculating percent it will always be over 100. With the given numbers 14 is your part out of the total (25). It should be written as part/whole.

As previously said, the percent is always over 100. (x/100)

In this problem you are given the part (14) and the whole (25). So it would be 14/25. The percent in this problem would be x/100. Now to find percent with the given part/whole, you would multiply 14 with 100. Then simply divide by 25.

7 0
3 years ago
Other questions:
  • An apartment rents for $800 a month the monthly rent is expected to increase $15 each year what will the rent at the end of the
    8·1 answer
  • PLEASE HELP ME!! AT LEAST DO 2 PROBLEMS!
    7·1 answer
  • 11 4/5 × 20<br>area of a parellelogram
    9·2 answers
  • What is the ratio of the number of gray T-shirts to the number of black T-shirts?
    14·1 answer
  • Which value of x would make NO || KJ?<br> 1<br> 6<br> 8<br> 10
    6·2 answers
  • Function k is a linear function with a slope of 1/2 that passes through the point (4,2). What equation represents Function K?
    10·1 answer
  • What is the equation of y = x3 with the given transformations? horizontal translation right 10 units and vertical translation do
    10·2 answers
  • I USED ALL MY POINTS! PLEASE HELP ME ASAP!!!
    11·2 answers
  • Hii please help i’ll give brainliest!!
    13·2 answers
  • Will give Brainly answer
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!