Question

Solve the following please​

Answer 1

Answer:

10 35/50

7/10

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BRAINLIEST MY ANSWER

Answer 2

(7)

• $\sf \longrightarrow$ ∑fixi = 750
• $\sf \longrightarrow$ ∑fi = 20

• $\sf \longrightarrow Mean \bar x = \frac{ ∑fixi}{∑fi}$

• $\sf \longrightarrow Mean \bar x = \frac{750}{20}$

• $\sf \longrightarrow Mean \bar x = \frac{\cancel{750}^{\: \: 37.5}}{\cancel{20}}$

• $\sf \longrightarrow Mean \bar x = \underline{\underline{37.5}}$

(8)

• we know that, $\sf \longrightarrow p(A) + p(\bar A) = 1$

• $\sf \longrightarrow p(A) + p(\bar A) = 1$

• p(A) = 0.43

• $\sf \longrightarrow 0.43 + p(\bar A) = 1$

• $\sf \longrightarrow p(\bar A) = 1 -0.43$

• $\sf \longrightarrow p(\bar A) = \underline{\underline{ 0.57 }}$

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