The average resting heart rate of a population is 86 beats p…

The average resting heart rate of a population is 86 beats per minute, with a standard deviation of 10.5 bpm. Find the z-scores that correspond to each of the following heart rates. Round your answers to the nearest hundredth, if necessary. 103 bpm z= [a] 74 bpm z= [b]  

   The table below shows the head size of 30 male soldier…

   The table below shows the head size of 30 male soldiers in inches. The head size was measured by wrapping a tape measure around the solder’s head. Construct a stem plot for the head size data set. If a stem has no corresponding leaves, put a dash, like this – .                                      Stems Leaves 24 [a] 25 [b] 26 [c] 27 [d] 28 [e] 29 [f] 30 [g] 31 [h] 32 [i]

An experiment is to draw 1 card from a fair deck of playing…

An experiment is to draw 1 card from a fair deck of playing cards.a) If you were to list the sample space, how many equally likely outcomes would it have? [a]b) Find the probability of getting a 10. Leave your answer as a fraction.  [b]c) Find the probability of not getting a club. Leave your answer as a fraction. [c]d) Find the probability of getting a heart. Leave your answer as a fraction. [d]e) Find the probability of getting a 10 or a diamond. Leave your answer as a fraction. [e]

A statistics student posts a link to an online survey on soc…

A statistics student posts a link to an online survey on social media and asks “How much time do you spend on social networking sites?”. Of the 1045 who respond to the survey, 40% say between one to two hours. What kind of sampling method is this, and why is it bad? What kind of sampling method is this? Select True if the option is a sampling method used, and False if it is not used.  [a] The responses are from a population. [b] The responses are from self-selection. [c] The responses are from a voluntary response sample. [d] The responses are a census.   Why is this sampling method bad? Select True if the option is a reason the sampling method is bad, and False if it is not. [e] The general population may not be reflected in the responses. [f] It is too expensive. [g] It takes too long to answer. [h] Too many people may choose to not respond to the survey. [i] The question is worded in a way to get a specific response, or ‘loaded’.