b. 25. means that you square each of the values in the distribution and then add it all. Thus, you will add 12+22+22+42. This will give you 25.
Incorrect Question 11 0/2 pts What is the value of Ex for the scores 1, 2,...
What is the value of EX^2 for the scores 1,0,2,4? I need to show work so I can have an understanding of how to do it correctly. Thank you. What is the value of ΣΥ2 for the scores 1,0,2,4? 0 14 O 28 9 49 21 s Previous SHOW WORK
D Question 24 1 pts A population of N-100 scores hasu -30 and 0-2. What is the population variance? 16 Question 25 1 pts The value for SS can never be greater than the mean positive negative Brven peanuts; it has a terrible reaction
Help 0/5 pts Incorrect Question 4 For Fe2+ what is the value of the high spin state 0 a, 0 ○ b. 1/2 c. 2 d. 5/2
question 1&3 Incorrect 0/2 pts Question 1 What is the volume of 2.09 g of Ne gas at STP? 2.33 Question 2 2/2 pts What is the density of Xe (g) at STP? g/L 5.86 Incorrect Question 3 0/2 pts How many molecules of NH3(g) are present in 19.3 L at STP? molecules 5.189x10^23
Incorrect 0/1 pts Question 2 Why are the coronary arteries important? They supply oxygen-rich blood to the head. They supply oxygen-rich blood to the heart muscle. They regulate heart rate. They transport blood to the lungs to receive fresh OXYggn. Incorrect 0/1pts Question 3 For CPR to be most effective, the patient should be- Positioned on his/her head so it is slightly higher than his/her heart On his/her back on a firm, flat surface. On his or her back, however...
Question 4 < 0/2 pts 93 94 Details Probability Scores 0.15 0 0.05 1 0.1 2 0.45 3 0.05 9 10 0.1 0.1 13 Find the expected value of the above random variable. Question Help: D Video D Post to forum Submit Question
Incorrect Question 1 0/4 pts What is the pH of a solution with [H30+1 = 2.19 x 10^M? 3.0 3.7 10.03 6.32 Incorrect Question 2 0/4 pts A solution is prepared by dissolving 111.9 g HCl in enough water to make 160L of solution. The pH of this solution is: O 3.1 O none of these O 17
what is the correct answer for this? Incorrect Question 2 0/1 pts Which of the following correctly demonstrates the use of an array initializer list? Choose all that apply. int[] my_array = {1, 2, 3, 4, 5); int[] my_array = [1, 2, 3, 4, 5]; int my_array = (1,2,3,4,5); int my_array = new {1, 2, 3, 4, 5); none of these
Incorrect Question 11 0/1 pts 11. A capacitor is initi ally charged to 3 V. Itis then connected to a 6 V battery. What is the ratio of the final to the initial energy stored in the capacitor? A) 3 B) 5 C) 6 D) 7 E) 9
Question 11 pts What is the opportunity cost of 1 ton of apples for the nations of Argentina and Brazil, respectively? 4 tons of oranges and 2 tons of oranges 2.5 tons of oranges and .4 tons of oranges .25 tons of oranges and .5 tons of oranges 2 tons of oranges and 4 tons of oranges Oranges b) Oranges tons per year tons per year) 28 Brazil Argentina 16 14 0 Apples (tons per year) Apples (tons per year)