A cognitive psychologist investigated the duration of short-term memory using a Peterson and Peterson distractor task. Participants were presented with a consonant trigram and asked to recall it after a retention interval. The duration of successful recall (in seconds) before forgetting occurred was recorded for a sample of 80 participants. The results are shown in Table 1 below.

Table 1: Distribution of successful recall durations for the sample of participants

Duration of successful recall (seconds)	Frequency
0 – 4	14
5 – 9	32
10 – 14	24
15 – 19	10

Draw a histogram to display the data in Table 1.

Table 1: Distribution of successful recall durations for the sample of participants

Duration of successful recall (seconds)	Frequency
0 – 4	14
5 – 9	32
10 – 14	24
15 – 19	10

Draw a histogram to display the data in Table 1.

Research methods and skills

Question 22

Table 1: Distribution of successful recall durations for the sample of participants

Markscheme

Research methods and skills

Question 22

Table 1: Distribution of successful recall durations for the sample of participants

Markscheme

Research methods and skills

Question 22

Table 1: Distribution of successful recall durations for the sample of participants

Research methods and skills Questions

Research methods and skills

Question 22

Table 1: Distribution of successful recall durations for the sample of participants

Research methods and skills Questions