Name: Date: Measures of central tendency give us numbers that
... The standard deviation of a data set tells us, on average, how far a data point is away from the mean of the data set. The larger the standard deviation, the greater the variation within the data set. Exercise #3: A farm is studying the weight of baby chickens (chicks) after 1 week of growth. They f ...
... The standard deviation of a data set tells us, on average, how far a data point is away from the mean of the data set. The larger the standard deviation, the greater the variation within the data set. Exercise #3: A farm is studying the weight of baby chickens (chicks) after 1 week of growth. They f ...
here - BCIT Commons
... population distribution is not even approximately normal, or you don't know and don't want to make an erroneous assumption), there is another rule that may be tried. This result, called Tchebysheff's Theorem, makes no assumptions at all about the shape of the data distribution. It can be stated as f ...
... population distribution is not even approximately normal, or you don't know and don't want to make an erroneous assumption), there is another rule that may be tried. This result, called Tchebysheff's Theorem, makes no assumptions at all about the shape of the data distribution. It can be stated as f ...
Quantitative Research methods for the Social Science, 7.5 hp
... – All information in sample can be summaries in the mean and standard deviation. ...
... – All information in sample can be summaries in the mean and standard deviation. ...
Probability Basic Concepts of Probability
... Application of Counting Principles Example: In a state lottery, you must correctly select 6 numbers (in any order) out of 44 to win the grand prize. a.) How many ways can 6 numbers be chosen from the 44 numbers? b.) If you purchase one lottery ticket, what is the probability of winning the top prize ...
... Application of Counting Principles Example: In a state lottery, you must correctly select 6 numbers (in any order) out of 44 to win the grand prize. a.) How many ways can 6 numbers be chosen from the 44 numbers? b.) If you purchase one lottery ticket, what is the probability of winning the top prize ...
ch4_variability1
... Interquartile range: Distributions can be split up into 4 parts called quartiles Median is at the second quartile (Q2) Interquartile range is the difference between the 1st and 3rd ...
... Interquartile range: Distributions can be split up into 4 parts called quartiles Median is at the second quartile (Q2) Interquartile range is the difference between the 1st and 3rd ...
Point Estimation
... Ex. One wants to estimate population mean . Person A uses a sample of size 10, and person B uses a sample of size 100. Which estimate is better? Recall: If a continuous numerical variable X has mean and SD , the sampling variability (variance) of sample mean X is ...
... Ex. One wants to estimate population mean . Person A uses a sample of size 10, and person B uses a sample of size 100. Which estimate is better? Recall: If a continuous numerical variable X has mean and SD , the sampling variability (variance) of sample mean X is ...