CALCULATOR-ASSUMED METHODS UNIT 3 (9 marks) Question 18 Seeds were planted in rows of five and the number of seeds that germinated in each of the go rows are summarised below. Number of germinating seeds Number of rows Use the results in the table to determine (a) the probability that at least 4 seeds germinated in a randomly selected row. (1 mark) (ii) the mean number of seeds that germinated per row. (1 mark) IS AREA AS IT WILL BE CUT OFF Another row of five seeds is planted. Determine the probability that at least 4 seeds germinate in this row if the number that germinate per row is binomially distributed with the above mean. (2 marks) CALCULATOR-ASSUMED 15 in rows of 20. cuppose it is known that 870% of all seeds planted will germinate and that seeds are now planton METHODS UNIT 3 (c) (1) Assuming that seeds germinate independently of each other, determine the most likely number of seeds to germinate in a row. (1 mark) the probability that no more than 16 seeds germinate in a randomly chosen row. (2 marks) (iii) the probability that in six randomly chosen rows, exactly three rows have no more than 16 seeds germinating in them. (2 marks)