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3 years ago

Is Statistics mathematics or science? Defend your answer.

1 answer:

8 0

Statistics is related to maths because we study, use and even consider statistic problems with reference to mathematics.

• It is mostly used to find the census, which is maths.

• It is used to find interest rates and other banking terms using statistics, which is again related to math.

• It is also used to find the average people living in a village or panchayat, which is also math.

Therefore I strongly believe that Statistics is Maths.

Thank You!

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3 years ago

Work out the following questions

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Step 1. Turn the second fraction (the one you want to divide by) upside down

(this is now a reciprocal).

Step 2. Multiply the first fraction by that reciprocal

Step 3. Simplify the fraction (if needed)

Example:

1/2 ÷ 1/6

Step 1. Turn the second fraction upside down (it becomes a reciprocal):

1/6 becomes 6/1

Step 2. Multiply the first fraction by that reciprocal:

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4 years ago

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A triangle and a square are drawn on dotty paper with dots 1 cm apart. What is the area of the region coloured red?

Anna71 [15]

Answer:

≈ 0.9 cm²

Step-by-step explanation:

I don't know if there is any easier way to solve this, I use 8th grade slope and line method to solve. suppose A is on origin, then the coordinates of triangle ABC are (0,0) (1,3) (4,1) and polygon DEFGH intersect line BC at F and G.

F is the intersect of y=2 and line BC, while G is intersect of x=3 and line BC.

Line BC: pass (1,3) and slope (m) = (1-3)/(4-1) = - 2/3,

F(x,2)

(2-3) / (x-1) = -2/3

2x-2 = 3 x = 2.5

*F (2.5 , 2)

G (3,y)

(y-3) / (3-1) = -2/3 y = 5/3

*G (3 , 5/3)

*point I (3 , 2)

segment FI = 3-2.5 = 0.5 = 1/2

segment GI = 2 - 5/3 = 1/3

area ΔFIG = (1/2 * 1/3) / 2 = 1/12 = 0.083

area of polygon DEFGH (region colored RED) = 1 - 0.083 = 0.917 ≈ 0.9 cm²

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2 years ago