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
ahrayia [7]
3 years ago
14

C) A researcher has extracted two samples from the same target population, sample A and sample B. Sample A has a mean of 25 kg w

hile sample B has a mean twice that of sample A. Sample size of sample A is three times more than that of sample B. Sum of sample sizes is 60. Calculate:
i. Mean of sample B (1mark)
ii. Sample size of sample A and sample B (2 marks)
iii. Summation of x variables for sample A and sample B (4 marks)
iv. Standard deviation of sample A and sample B, consider ungrouped data (5 marks)
Mathematics
1 answer:
aleksandrvk [35]3 years ago
3 0

Answer:

dsgberhyujxgkloyjnhbgfvbhnjklkjhbgfdfghjkiopolkjhgfew

Step-by-step explanation:

You might be interested in
A straight line has a slope of 2.08. Calculate the angle that the line makes with the x (horizontal) axis.
zubka84 [21]

Answer:

The angle that the line makes with x-axis of of 64.3º.

Step-by-step explanation:

Equation of a line, and angle with the x axis:

The equation of a line has the following format:

y = mx + b

In which m is the slope.

The angle that the line makes with the x axis is given by the angle which has tangent m, that is, a = \tan^{-1}{m}.

In this question:

We have that m = 2.08. So

a = \tan^{-1}{2.08} = 64.3

The angle that the line makes with x-axis of of 64.3º.

4 0
3 years ago
32 is 16% of what number
Alecsey [184]
The answer is 200. 1% is equal to 2, so 100% is equal to 200.
7 0
3 years ago
Read 2 more answers
Please answer this question <br><br> 2x^2 = 3x
Anika [276]

Answer:

x = 1.5

Step-by-step explanation:

2x^2 = 3x

divide whole eqn by x

2x = 3

x= 3/2 =1.5

3 0
3 years ago
Read 2 more answers
Love how everyone hw on here is geometry and im just here like.... help...
Veronika [31]

Answer:

nope it isn't a linear function

Step-by-step explanation:

if you put it in a graph it isn't a straight line

4 0
3 years ago
Sarah drove for 39 miles with an average speed of 40 miles per hour. What amount of time was she driving for?
melamori03 [73]
1.53 hours if she drove 40 mph it would be 1 hour
6 0
3 years ago
Other questions:
  • 340 over 8 as a unit rate
    7·2 answers
  • The BMI equation is:
    15·1 answer
  • Write the quadratic function in vertex form.<br><br> y = x2 - 2x + 5
    6·2 answers
  • Can you help me with this page you can do as many as you want just please help
    13·1 answer
  • How do you do substitutional word problems?
    6·1 answer
  • Compute difference and simplify 4-2/9
    13·1 answer
  • Can someone help me?
    12·1 answer
  • 2 over 3 multiplied by 3 minus 5
    8·1 answer
  • Mental accounting can be used to explain(A) higher savings in separate retirement accounts;(B) high willingness to spend on cred
    9·1 answer
  • How many grams of a 15 percent alcohol solution should be mixed with 40 grams of a 30 percent solution to obtain a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!