The life of a battery used in a designer dog collar is assumed to be approximately normally distributed. A random sample of 10 such batteries is selected and placed on accelerated life test yielding the following results (measured in hours): 100 93 112 102 97 95 108 96 115 125 Use this data to complete Questions 1 - 4. Questions 1 - 4 are each worth 1 point. 1. Find the mean battery life. 2. Find the median battery life. 3. Find the variance for the battery life

Mr. bernard needs to order more boxes for his 16 inch diameter “super pizza.” use 3.14 to approximate π.

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.