Iqr interquartile range Study guides, Class notes & Summaries
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Straighterline Introduction to Statistics Exam Questions and Answers
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Straighterline Introduction to Statistics 
Exam Questions and Answers 
Four steps in the process of statistics -Answer-1. Producing Data 
2. Exploratory Data Analysis 
3. Probability 
4. Inference 
Categorical variable -Answer-places individuals into one of several groups 
Two types: nominal and ordinal 
Quantitative Variable -Answer-represents a measurement or a count 
Two types: Interval and ratio 
Nominal Variable -Answer-categorical variables where there is no natural order among 
the catego...
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PEARSON EDEXCEL LEVEL 3 GCE MATHEMATICS ADVANCED SUBSIDIARY PAPER 2: STATIATICS AND MECHANICS APPROVED 2024 EXAM WITH ACCURATE QUESTIONS AND ANSWERS. (100% COMPLETE EXAM) VERIFIED MARKINGSCHEME ( CHECK SECTION 2)
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PEARSON EDEXCEL LEVEL 3 GCE MATHEMATICS 
ADVANCED SUBSIDIARY 
PAPER 2: STATIATICS AND MECHANICS 
 
 
 
APPROVED 2024 EXAM WITH ACCURATE QUESTIONS AND ANSWERS. 
(100% COMPLETE EXAM) 
 
VERIFIED MARKINGSCHEME ( CHECK SECTION 2) 
 
 
 
 
 
 
 
 
 
 
 
 
 
Candidates may use any calculator permitted by Pearson regulations. Calculators must not have the facility for algebraic manipulation, differentiation and integration, or have retrievable mathematical formulae stored in them. 
 
 
 
 
 
 
 
 
 
...
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WGU C784 Applied Healthcare Statistics Exam (New 2023/ 2024 Update) | Questions and Verified Answers| 100% Correct| Grade A
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WGU C784 Applied Healthcare Statistics 
Exam (New 2023/ 2024 Update) | Questions 
and Verified Answers| 100% Correct| Grade 
A 
 
QUESTION 
 How do you find the IQR of data? 
 
Answer: 
 IQR (interquartile range) is the distance 
(difference) between Q3 and Q1 (so Q3-Q1) 
 
 
QUESTION 
 What is in a 5-number summary? 
 
Answer: 
 min, Q1, median, Q3, max 
 
 
QUESTION 
 What percentage is a standard deviation of 1? 
 
Answer: 
 68% 
 
 
QUESTION 
 What percentage is a standard deviation...
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Straighterline Introduction to Statistics questions with complete solutions 2023
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Straighterline Introduction to Statistics questions with complete solutions 2023Four steps in the process of statistics 
1. Producing Data 
2. Exploratory Data Analysis 
3. Probability 
4. Inference 
 
 
 
Categorical variable 
places individuals into one of several groups 
Two types: nominal and ordinal 
 
 
 
Quantitative Variable 
represents a measurement or a count 
Two types: Interval and ratio 
 
 
 
Nominal Variable 
categorical variables where there is no natural order among the categori...
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HSC Mathematics Standard 2 Revision Questions & Answers | Latest Update | Verified Answers | Grade A+
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Sine Rule 
:: 
Cosine Rule 
:: 
Future Value 
:: the amount of money in the future that an amount of money today will yield, given 
prevailing interest rates 
Trapezoidal rule 
:: 
Limit of reading 
:: smallest unit on the measuring instrument also known as precision. 
Absolute error 
:: ½ × limit of reading (maximum value) 
Interquartile Range (IQR) 
:: the difference between the first quartile and third quartile. Q3 - Q1 
standard deviation 
:: a measure of the spread of data about the m...
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Green Packet MC Questions and Answers Already Passed
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Green Packet MC Questions and 
Answers Already Passed 
 
Of the following dotplots, which represents the set of data that has the greatest standard 
deviation? B 
 
split in half 
 
A random sample of 374 United States pennies was collected, and the age of each penny was 
determined. According to the boxplot below, what is the approximate interquartile range (IQR) 
of the ages? 
graph 
 
A 
8 
 
B 
10 
 
C 
16 
 
D 
40 
 
E 
 
50 C 
 
16 
 
graph 
 
The histogram above shows the number of minute...
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WGU C955 - Module 4: Descriptive Statistics for a Single Variable, Top Exam Questions and answers, graded A+
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WGU C955 - Module 4: Descriptive Statistics for a Single Variable, Top Exam Questions and answers, graded A+ 
 
 
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...
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C207 Already Passed Exam Questions and CORRECT Answers
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1. Which of the following statistics are unaffected by a single large outlier? (More than one) * 
Median, mode, Interquartile range (IQR) 
2. Which of the following is most suitable for policy making based on income distribution? * 
Median 
Because of assumed skewed distribution 
3. If we study data from a population whose mean is 200 and standard deviation is 30, which 
of the following data points has a z-score of -3? * 110. 
4. Which of the following statistics measures the spread of the d...
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RESEARCH METHODS MIDTERM - MCPHS SPRING QUESTIONS & ANSWERS VERIFIED 100% CORRECT!!
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null hypothesis (H0) - the statistical hypothesis tested by the statistical procedure; usually a 
hypothesis of no difference or no relationship 
Interquartile Range (IQR) - the difference between the first and third quartiles (middle 50% of 
observations) 
dichotomous measure - describes the presence or absence of an attribute (ex smoker/nonsmoker) 
nominal data - categories that vary with no natural order (ex blood types) 
ordinal data - categories with natural order but without clear units (e...
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Basic Statistics and Epidemiology for CTR Exam (Latest 2023/2024) Actual Questions and Answers 100% Correct
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Basic Statistics and Epidemiology for CTR Exam 
(Latest 2023/2024) Actual Questions and Answers 100% Correct 
 
1. Measures of central tendency 
Answer: mean, median, mode 
2. Measures of variability or dispersion 
Answer: range, variance, standard deviation andinterquartile range (IQR) 
3. Measures of Shape 
Answer: skewness, symmetric (normal curve or bell curve), andbimodal 
4. Skewness 
Answer: Degree of asymmetry in a distribution Positive - Tail extending out to 
right (larger numbers)Neg...
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