IBHardStatistics7–9

Six students recorded how many minutes they spent reading. The mean is $15$ minutes and five of the values are $12$ , $14$ , $15$ , $18$ and $20$ . What is the sixth value?

Seis alunos registaram quantos minutos passaram a ler. A média é $15$ minutos e cinco dos valores são $12$ , $14$ , $15$ , $18$ e $20$ . Qual é o sexto valor?

Answer options

Solution

Step 1 of 3

1.Total needed: $15 \times 6 = 90$ minutes

Six students recorded how many minutes they spent reading. The mean is 151515 minutes and five of the values are 121212, 141414, 151515, 181818 and 202020. What is the sixth value?

Answer options

Six students recorded how many minutes they spent reading. The mean is $15$ minutes and five of the values are $12$ , $14$ , $15$ , $18$ and $20$ . What is the sixth value?