Question

I calculate Harmonic Mean from following
class interval 0-4
4-8
8-12
12-16
16-20
frequency:
4
12
20
9
5
​

Answer 1

Answer:

I calculate Harmonic Mean from following

class interval 0-4

4-8

8-12

12-16

16-20

Explanation:

frequency:

4

12

20

9

5

Answer 2

Desert habitat

Deserts are areas that receive very little rainfall. In

hot deserts, daytime temperature in summer can reach

above 50°C and at night the temperature can drop

down to 0°C or even less. Annual rainfall is less than

25 cm. Sahara, Kalahari and Thar are some deserts.

Flora : Cactus, date palm, Acacia, etc.

Fauna : Camels, Kangaroo rats, rattlesnakes,

gila monster, etc.

Deserts are mostly considered to be hot but Gobi desert

in China is very cold.