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
solniwko [45]
3 years ago
15

Wo commondities A and B cost 070 and D80 respe

Mathematics
1 answer:
Mariana [72]3 years ago
8 0

Answer:

b) 65.08

ii) 0.75

Step-by-step explanation:

x(Kg):                  62      63     64     65     66     67     68

Frequency(f):      1          5        11       15      10     6        2

           xf:           62       315    704    975  660  402    136

b) mean(X) = ∑xf/N = 3254/50 = 65.08

c) x - X :          -3.08    -2.08    -1.08    -0.08        0.92   1.92    2.92

   (x - X)²:        9.49     4.33      1.17       0.0064    0.85   3.69    8.53

ii) Standard deviation(S.D.):  √(∑(x - X)²/N = √(28.0664)/50 = √0.5613

 ∴ S.D.= 0.75

You might be interested in
What is the value of 1/4 to the power of 3
LenaWriter [7]

Answer:

1/64

Step-by-step explanation:

hope that helps

7 0
3 years ago
Which expression is equivalent to the given expression? 17x−32x A. x(32−17) B. 17(x−32) C. 17x(1−32) D. x(17−32)
Olegator [25]
D is correct
good luck
6 0
3 years ago
Read 2 more answers
It is 7 times as much to go to an amusement park as it is to go to the movies if it is $9 to go to the movies how much is it to
julsineya [31]
It will be 63 dollars to go to a amusement park
3 0
3 years ago
Read 2 more answers
Help with practice problem
fenix001 [56]

Answer:

y = 2x - 6

Step-by-step explanation:

For parallel lines, the mx (the slope) stays the same but the y-int changes.

7 0
2 years ago
Solve for x and y 4x, 15 X + 12, 3y<br>(it's for a parallelogram)​
yan [13]

Answer:

done on peace of paper

Step-by-step explanation: bro this was so easy how do you not know this

7 0
3 years ago
Other questions:
  • The weight of water 62 1/2 lb per cubic foot. What is the weight of 29 1/8 cubic feet of water? Simplify the answer using whole
    7·1 answer
  • 4a² + 8a -100 Factor
    6·1 answer
  • What is the value of y in the solution set of the system of linear equations shown
    5·1 answer
  • Classify each pair of lines as parallel, perpendicular, coinciding, or intersecting at a non-right angle:
    6·1 answer
  • The bells obtain a 20-year, $90,000 conventional mortgage at a 8.5% rate on a house selling for $130,000. their monthly mortgage
    15·1 answer
  • How many variables are in 4x3 + 2y + 6?
    14·1 answer
  • A tennis player strikes a tennis ball from underneath her racket. The ball is sent up with a velocity of 20 m/s. how highly will
    5·1 answer
  • Plz answer both questions if works will give brainliest BTW start from the 1st one at the top
    12·2 answers
  • State if the two triangles are congruent. if they are, state how you know
    12·1 answer
  • Jessie needs to get a picture blown up from a 4x6 standard print to a poster size frame she has. When she gets to the copy place
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!