For number 6-9: In a recent study of 35 Grade 3 pupils, the mean number of hours per week that they played video games was 16.6. The standard deviation of the population was 2.8. 6. Which of these is the point estimator? A. 2.8 C. 35 D. 40 В. 16.6 7. Determine the standard error A. 0.47 C. 16.6 В. 2.8 D. 35 8. Find the values of the z-score at 95% confidence level for the estimated interval of the population mean. C. ±2.54 D +3.96 A. ±1.64

Q: 12 5 10

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Q: 4+(9+2)=(10+ )

A:

Q: 1 Sody y² +9

A:

Q: 4 2 1 (1) 2x -3 9

A:

Q: 8=3s-7s

A: Find the value os s from the given equation

Q: 8-9+(2+2)-(9+6)

A: Given query is to simplify the expression.

Q: 3-4+8

A: 3-4+8 =-1+8 =8-1 7

Q: 7 4 2x - 5 x+5

A:

Q: 10h+6-5h+3

A:

Q: 18-2(3+4)

A: The given expression is;

Q: 31+19-8

A:

Q: 3 3 Simplify c4 c7

A:

Q: 6+5x(8/2)2

A:

Q: 7-6+5

A: To evaluate the expression.7-6+5

Q: 5n + 10 + 4 = 4n + 6

A: Since the given 5n + 10 + 4 = 4n + 6. we have to find the value of n.

Q: 2x-14

A:

Q: 11+(9+4)=(6+7)+11

A: 11+(9+4) = (6+7)+11 LHS 11+(9+4) = 11+13 = 24

Q: 2k-4k2

A: Given that

Q: 12+(8x7)412+(8x7)4

A:

Q: 10 Зх + 3 6. 9.

A: Answer

Q: 8+34-362

A: Given expression is 8+34-362. We have to simplify the given expression. 8+34−362=42−362=−320 Hence,…

Q: スメ3X5

A: 2×3×5  Means multiply numbers =2×3×5=30

Q: 8 + 4(8 - 2)2

A: Given information:The given expression is 8 + 4(8 - 2)2.

Q: 48x4/ 6x6=

A: To simplify the given expression.

Q: 3x + 4 8 + x+12 8 x+8 6

A: To find the value of x.

Q: 24- 6(-x-3)

A: Solve for x,

Q: Multiply.

A: Use the defintion of square to write the given expression as follows.

Q: Whats 2 multiplied by 2?

A: Whats 2 multiplied by 2?

Q: 125=(5u+8)2

A: Consider the given equation

Q: Зх3 — 2х2 —6х + 4

A: a. Factorization, 3x3-2x2-6x+4=3x3-2x2-6x-4=x23x-2-23x-2=x2-23x-2

Q: 1 26x+ 7 75-9

A: Solution of the equation is shown on the board: 7x-1/9≤6x+2/7

Q: 8a+5=45-a

A:

Q: 50 Isls²+25+4

A:

Q: 8 + 7(42 - 3)

A: 8 + 7(42 - 3) = ?

Q: 2(3y-2) 20

A: