Wgu c955 stuvia - Study guides, Class notes & Summaries

A researcher wants to know if there was a relationship between student age and desire to complete a college degree. To answer this question, the researcher used a local community college as the sampling frame and then used stratified sampling to get a sample of students from 18 to 80 years old. Based on the information given, is there any potential bias in this study? a Yes, because the sampling frame does not match the intended population of the question. b Yes, because the sampling method ...

a Yes, because the sampling frame does not match the intended population of the question. b Yes, because the sampling method will not give a representative sample. c Yes, because a voluntary sample should have been used. d No, there will likely be no bias in this study. - ANSWER-Yes, because the sampling frame does not match the intended population of the question. A researcher conducts an observational study and finds a correlation between managers' income and the number of college credi...

The table below shows the breakdown of workers at a business. What is the probability of selecting a worker who is over 45 years of age to the nearest hundredth? Age 18−25 26−44 45+ Total Male Female Total a 0.16 b 0.29 c 0.42 d 0.55 - ANSWER-0.29 The table below shows the breakdown of workers at a business. What is the probability that a randomly selected 18−25 year old is male (to the nearest hundredth)? Age 18−25 26−44 45+ Total Male Female Total ...

{{ Pie chart reflecting the average number of hours exercised per week. No exercise 36%, 1 - 2 hours 28%, 3 - 4 hours 12%, 4 - 5 hours 10%, 5 - 6 hours 8%, 6 - 7 hours 4%, more than 7 hours 2%. }} a 18 b 36 c 72 d Cannot determine - ANSWER-72 Determine the range for the following data set. {1,24,26,28,32,36,38,40,65} a 1 to 65 b 64 c 65 d Cannot determine - ANSWER-64 It is important to start the frequency scale on a bar chart at which value to be certain not to overemphasi...

{{ Pie chart reflecting the average number of hours exercised per week. No exercise 36%, 1 - 2 hours 28%, 3 - 4 hours 12%, 4 - 5 hours 10%, 5 - 6 hours 8%, 6 - 7 hours 4%, more than 7 hours 2%. }} a 18 b 36 c 72 d Cannot determine - ANSWER-72 Determine the range for the following data set. {1,24,26,28,32,36,38,40,65} a 1 to 65 b 64 c 65 d Cannot determine - ANSWER-64 It is important to start the frequency scale on a bar chart at which value to be certain not to overemphasi...

Which of each of the following would you use to classify sqrt(16) ? Prime or Composite? Odd or Even? Rational or Irrational? - ANSWER-Composite, Even, Rational Is 2 a prime or composite number? - ANSWER-prime Fill in the blank with the correct equality or inequality symbol: −8 ___ 6 - ANSWER-< Which of the following statements is true? 8>8 8<8 8>=8 8!=8 - ANSWER-8 >= 8 An infinite, repeating decimal is considered an irrational number. True or False? - ANSWER-...

Probability and Statistics, WGU C955 Questions and Answers (Graded A) Probability and Statistics, WGU C955 Questions and Answers (Graded A) Probability and Statistics, WGU C955 Questions and Answers (Graded A)Boxplot - ANSWER-an image that has min, Q1, median, Q3, max Histogram - ANSWER-A graphical representation -- bars, measuring the frequency within each interval Skewed right - ANSWER-Not a symmetric distribution, the tail is on the right, i.e. extra stuff on the right Meas...

What is the equation of the graph in slope-intercept form? {{ A graph of a line moving up and to the right that passes through (0,-1) and (1,2). }} a y=−3x−1 b y=3x−1 c y=3x+1 d y=−3x+1 - ANSWER-y=3x-1 Solve for x in the following equation: 10+2x = 6−2x a −4 b −1 c 1 d 4 - ANSWER--1 Solve for x in the following inequality: x < -4 a x>−4 b x<−4 c x>−1 d x<−1 - ANSWER-x<-4 Please simplify the expression with a fraction: ...

WGU C955 Exam Questions and Answers 100% Correct WGU C955 Exam Questions and Answers 100% Correct

Please evaluate the following expression: (Be sure to convert your answer to a mixed number or reduce the fraction to its lowest terms.) 6 3/8 + 4 1/2 = ? a 10 3/8 b 10 5/8 c 10 7/8 d 11 1/8 - ANSWER-10 7/8 Please evaluate the following expression with decimals: 7.82+2.947= ? a 10.767 b 8.114 c 10.029 d 9.127 - ANSWER-10.767 Please evaluate the following expression with percentages: 105*86%=? a 90.3 b 122.09 c 71.4 d 154.41 - ANSWER-90.3 Please evaluate the following...