Chapter 11, Problem 11.3LB

Find the z-score corresponding to a score of X = 50. μ= 60 and σ= 5 μ= 45 and σ=5 μ= 40 and σ= 5 μ= 37 and σ=5 μ= 59 and σ=5

The standard deviation of the y(t)=3 sin(20πt) is: O 1.0606. 2.1213. O 1.6062 O 2.2123.

VER .4.042. What is the probability that at least two of the nine justices of the U.S. Supreme Court have the same birthday? (Use a 365-day year. Round your answer to fou 9.4623% Need Help? Read It Show My Work (Optional) @ 40°F Clear A OType here to search PrtSc Insert F11 F12 F10 F8 F9 C2 F7 A X F4 F6 F5 F3 F2 F1 & %23 7 4. P T Y R K G H. 三黑 * 00

d. Denote the expected return and its standard deviation as functions of π byμ(π ) and σ (π ). The pair (μ(π ), σ (π )) trace out a curve in the plane as πvaries from 0 to 1. Plot this curve. I need to draw a graph from this??

I need help with parts “c”, “d, and “e” thanks.

S The chair of the business department hypothesizes that the final grades in a statistics course are distributed as 30% A's, 40% B's, 20% C's, and 10% D or F's. At the end of the semester, the following numbers of grades were earned in a class with 50 students. B C D, F 21 11 4 Grade A Number 14 Calculate the chi-square value.

Find the​ p-value for Plant 1.   p=enter your response here ​(Round to three decimal places as​ needed.)

Please help.

I attached two pictures, all of them are one question