living in southern regions. Random samples of birds were selected from each group and wing lengths for birds (in millimeters) were measured. The following table gives summary statistics. Region Northern (N) Southern (S) Difference (d = N - S) n Average 30 30 30 111.4 112.3 -0.9 Standard deviation 1.6 3.3 1.5 (a) Find a 90% confidence interval for the mean

Q: 25m² – 16 =

A: Simplify  25m2-16

Q: 10+7=?

A:

Q: 12 R 10 5

A:

Q: R 7 6.4 6. a

A: For similar triangle, ratio of corresponding sides are equal

Q: E1 Q21

A:

Q: Rang lertex = (-7;3) qu'od

A: The quadratic function has vertex (-2,3) and a point on graph 1, 12

Q: 2x Ax) = %3D 2 - 1

A:

Q: Q3 is incorrect.

A: data in ascending order:- 2, 12, 14, 28, 28, 30, 32, 34, 34, 34, 42, 44, 50, 52, 58, 60, 72, 78

Q: 12

A: Explanation and solutions is given below....

Q: A+12=13

A: Given,   A+12=13     We will solve it for the value of A

Q: 4a5b• V18a3b6

A: We have to find

Q: 7k = 91

A: We will find the value of k in the following step.

Q: B+A=18 B=

A: B + A = 18

Q: 30 = 6 + z z =

A: Given : 30  = 6+z

Q: H/4% 3D2%=5

A: This question is about simple multiplication.

Q: N 11 9

A: Here given that N/9=11

Q: nvert

A:

Q: Q3 a and b

A: As you asked for only question number 3 both a. And b. So here it is.