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a certain electronic mechanism has 2 bulbs which have been observed on or off with the following long-run relative
1 a bag contains a thousand coins one of which has heads on both sides a coin is drawn at random what is the
to review chapter 2 consider the experiment of tossing 3 coins the number of heads x may be 0 1 2 or 3 repeat this
a student is given 4 questions each with a choice of 3 answers let x be the number of correct answers when the student
a ball is drawn from a bowl containing 2 red i blue and 7 black balls the ball is replaced and a second ball is drawn
1 check the probability function of problem 4-9 using the formulas of this section2 in rolling 3 dice let x be the
1 on d blind toss of a dart suppose the probability of hitting the target is 15 what is the probability that in 6
the students of a certain school engage in various sports in the following proportions football 30 of all students
three coins are fairly tossedel first two coins are headse2 last coin is a heade3 all three coins are headstry to
the table below gives the number of fruit produced per tomato plant in relation to soil nitrogen phosphorous and nickel
a certain species of beetle was sampled yielding the following 10 lengths in centimeters 15 10 12 10 11 10 16 12 14 20
throw a die 100 times or else simulate this by consulting the random numbers in appendix table graph the relative
the data below are for the time taken in minutes for people to evacuate a multi-storey building in response to a fire
this is a useful exercise to help understand how statistical tests actually work it can be done by hand using the
1 comment on the following lsquodepending on sample size a nonsignificant result in a statistical test may not
1 why would you expect an f ratio of about 1 and departures from this only due to chance if there was no significant
which of the following experimental designs may be suitable for analysis as a model i anova a a fisheries biologist was
an agricultural scientist was given the following data for the number of kilograms of fruit produced by eight randomly
in relation to the data in question 1 the agricultural scientist expected that variety 1 would yield a different weight
an urban entomologist did an experiment to assess the effectiveness of five different brands of mosquito repellent and
1 why can a transformation be useful when analysing data with parametric tests especially anova2 the following set of
the table below gives data for the systolic blood pressure in mm hg of 20 individuals who had systolic blood pressure
the table below gives the concentration of total polycyclic aromatic hydrocarbons pahs in three benthic sediment cores
a fisheries biologist who had to estimate the number of prawns in two aquaculture ponds chose three locations at random
the table below gives data for the percentage area of a persons teeth coated with plaque a colourless bacterial biofilm