90 Test scores were normally distributed with a mean of 71 and standard deviation of 8. Fill in the no distribution curve and answer the following questions. a. Find the probability that a test score would be in-between a 63 and 87. b. Approximately how many students scored at least a 79? c. Find the probability of a test score being below a 60. d. Approximately how many students scored above an 85? Activate Win- Go to Settings to e. Approximately how many students scored between a 70 and a 100?

Q: PQhas coordinates P(3,-6) and Q(3, 9). Find the coordinates of P'Q' after a dilation with a scale…

A: The dilation of a given point P(x,y) by factor K, centered at C(a,b), moves the point to P'(x',y')…

Q: A. Two golfing venues offer bays that customers con reserve to play various golf ing games. The…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Ryan is pushing a cart

A: To find the work done by Ryan in pushing the cart up the airport passenger ramp, we can use the…

Q: C'D' is the image of CD under a dilation 1 with scale factor 3 a. Write an expression for C'D' in…

A: Solving the 1st question. Given: C’D’ is the image of CD under dilation with scale factor of 1/3

Q: Hey, wondering if I could get some help with this problem?

A: The expectation of a continuous random variable X is given by EX=∫-∞∞xfxdx. Where,fx is the…

Q: Would be nice if help.

A:

Q: Can you answer this

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

Q: What do I have to do ?

A: Step:-1 In given problem, dilation  is used so first we need to understand about dilation and then…

Q: can anyone help me with this?

A: Note :  1. Corresponding angles are equal. 2. Alternate exterior angles are equal.

Q: and pears. Jane 6 apples and 10 Remus bought 14

A: Introduction: A linear equation has great importance in real life. Many real-life problems can be…

Q: A customer from Cavallaro's Fruit Stand picks a sample of 5 oranges at random from a crate…

A:

Q: Consider the following figure. Dilate the figure about the origin with a scale factor of and then…

A: Hey, since there are multiple subparts posted, we will answer first question. If you want any…

Q: Can you help me solve this?

A:

Q: This has nothing on it, I still need help

A:

Q: I cannot understand what you wrote unfortunately

A: NOTE: Refresh your page if you can't see any equations. . first, we need to simplify the given…

Q: Can someone help me with this?

A: Given that, A factory makes two products. Product A takes 4  hours on Machine 1 and 2 hours on…

Q: I can't complete

A: Since you have posted multiple sub-parts of question , we will solve first three  sub-parts for you.…

Q: I need to see the work written out please.

A:

Q: I don't see any answers?

A: The derivative of the given function F(x) can be found using chain rule. The question is solved…

Q: I don't understand, could you write it on paper?

A:

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.