1. A large normally distributed population has a mean of 150 and a std. dev. Of 12 a. Find the probability that a random selected score is between 150 and 157. b. If a sample of size n = 100 is randomly selected, find the probability that the sample mean

Pg. 218 Part I. 1. 1 2. infinite 3. discrete 4. always equal 5. infinite 6. 1 7. any of these 8. .27637 9. .47882+.46080=.93962 10. .07636-.03144=.04492 Part II. 1. In a memo to all those involved in tax preparation, the IRS indicated the mean amount of r

Pg. 191 Part I 1. 2. 3. 4. 5. 6. probability distribution probability of each random value with the value of the variable. one mean of the distribution two (2). There are two outcomes in binomial dist.= either 0 or 1. When probability is not equal to half

Descriptive statistics
count mean sample variance sample standard deviation minimum maximum range 1st quartile median 3rd quartile interquartile range mode low extremes low outliers high outliers high extremes Data 19 36.84 290.47 17.04 12 81 69 25.00 32.

A set of data includes 75 observations. How many classes would you recommend? a. 2 b. 7 c. 9 d. 8
Solution: I would recommend eight classes with the difference of 10 as class interval 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 In this case, it will co

Student A B C D E F G H I J K L M N O P Q R S T U V W X
Grade 90 69 88 92 77 52 66 84 89 42 67 95 86 84 88 74 0 25 88 91 83 79 88 100
a) What is the mean (average) of the test scores? (3 decimel places) b) c) d) e)
74.875 What is the median of the test sc

Consider the following number of defective circuit boards produced by two different machines on seven randomly selected days. Machine Defects A 2 3 7 4 5 1 0 B 2 3 4 3 4 2 4 a) To three decimel places what is the mean of machine A? 3.143 b) To three decim

1 ) Patrons at a local restaruant are asked to rate the service as excellent, good, fair, or poor. The level of measurement is (3pts) Nominal Ordinal Interval Ratio Answer Incorrec : t Points: 2 2 ) A person's age, income height, and weight are all exam

1. Determine whether a probability distribution is given, if not state so. If so, determine the mean, variance, and standard deviation. a. In the following table x represents the number of children in a family under the age of 18. X P(x) 0 0.48 1 0.21 2 0

Instruction manual:
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Place up to 10 kilos of rice grain on each tray
Open the door on the back of the dryer to see the rice husk furnace
Place1 kilo of rice husk on the rice husk furnace
Start up a fire by burning combustible materi