I sell a variety of paper including AQA papers where each has a merged marking scheme simply buying both papers at a price of one

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 ...

The relationship between the two variables on a scatterplot can be measured by what statistic? {{ Scatterplot of sales on the x-axis and profit index on the y-axis. }} a Correlation coefficient ( r ) b Regression c ANOVA d Chi-square - ️️Correlation coefficient ( r ) A study was completed to investigate if commutes of longer than 30 minutes increased the risk of burnout. The results of the study are in the table below. ,Lenth of Commute ,<30 Minutes ,>30 Minutes ,Total...

Basic probability - ️️#of total come# of total outcome in the sample space P(B | A) - ️️conditional probability P(A and B)=P(A) • P(B) - ️️multiplication rule- independent events P(A and B)= P(A) • P(B|A) - ️️multiplication rule- dependent events P(A or B)= P(A) + P(B) - ️️addition rule- Disjoint P(A or B)= P(A) + P(B) - P(A and B) - ️️addition rule- non-Disjoint product - ️️The result of multiplying values. factorization - ️️The process...

Identify the number of terms and the coefficient for the x term in the expression: 4x−3y+7 a Terms: 2 ; Coefficient: −3 b Terms: 2 ; Coefficient: 4 c Terms: 3 ; Coefficient: −3 d Terms: 3 ; Coefficient: 4 - ️️Terms: 3 ; Coefficient: 4 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 - ️️y=3x-1 Solve for x in the fo...

Which of the following numbers is taken out to the hundredths place? a 1.1 b 1 c 1.04 d 1.047 - ️️1.04 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 - ️️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 - ️️10.767 Please evaluate the following expressi...

Discrete data - ️️Has distinct values, can be counted, had unconnected points (think dots) Continuous data - ️️Has values within a range, measured not counted, does not have gaps between data points (data is connected lines or curves). Example of discrete data - ️️Days of the week Expressions - ️️A group of symbols such as numbers and operators that has mathematical validity Commutative - ️️The order in which the numbers appear in the sum can be reversed Identi...

Changing Improper Fractions and Mixed Numbers - ️️Improper fractions can be converted to mixed numbers by following these steps: Write division problem with numerator divided by denominator. Divide to determine quotient and remainder. Write mixed number with the quotient as the whole number and the remainder as the numerator over the same denominator. Changing Mixed Numbers Into Improper Fractions - ️️Mixed numbers can also be converted to improper fractions by following thes...

What is 3/4 divided by 2/3? A) 9/8 B) 5/12 C) 5/7 D) 6/7 - ️️9/8 A county park has hiking paths with lengths of 1.05, 3.6, 3.17, and 2.2 miles. What is the total length, in miles, of hiking paths in the park? A) 9.02 miles B) 10.02 miles C) 10.12 miles D) 11.2 miles - ️️10.02 miles If there are 2 tablespoons in 1 fluid ounce, how many tablespoons does the following calculation yield? 4 fl oz - 1.5 tbsp 0.5 tbsp 1 tbsp 2.5 tbsp 6.5 tbsp - ️️6.5 tbsp

What is the probability of someone having a birthday in March or December? a 1/6 b 1/4 c 1/3 d 1/2 - ️️1/6 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 - ️️0.29

If 200 people are surveyed, how many claim to have had no exercise? {{ 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 - ️️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 - ️️64 It is important to start the frequenc...