Question

(1) The temperature in a city on 7 days of a certain week is recorded as follows.
Days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
44°c
45 °c
Tem.in ºc 42°c 40 °c 38 °C 43 °c 40°c
(a) Find the range of the temperature of the above data.
(b) Find the mean temperature of the week.
(c) On how many days, the temperature was less than the mean temperature ?​

Answer 1

Answer:

Range is given as the largest value - smallest value

In the data ,

largest = 45°C

least = 38°C

range = 45 - 38

         =  7°C

mean temperature is given by adding the observations and dividing the sum with the number of observations.

Sum of all observations

= 42+40+44+45+38+43+40

=292

no of observations = 7

mean = 292 / 7

         = 41.7°C               [ approx. ]

hope it helped and please mark as brainliest:)

Answer 2

Answer:

a) 7°c

b) 292

c) 41.7°c

Step-by-step explanation:

a) Ascending order : 38°c, 40°c, 40°c, 42°c, 43°c, 44°c, 45°c.

In the data :

Larger = 45°c

Smallest = 38°c

Range = 45-38

= 7°c

b) Sum of all observation = 38+40+40+42+43+44+45=292

c) No of observation = 7

Mean = 297÷7

= 41.7°c