Question

7. If the mean of 16, 14, X, 23, 20 is 18, find the value of r.​

Answer 1

Answer:

x=17

Step-by-step explanation:

As we know,

x

=

n

x

1

+x

2

+....+x

n

here

x

=18

n=5

So, 18=

5

16+14+x+23+20

∴90=73+x

∴x=90−73

x=17

Answer 2

Answer:

67

Step-by-step explanation:

16+14+x+23+20 whole divided by 5 =18

16+14+x+23+20=90

x+73=90

x=90-73

x=67