Normal Distribution

The normal distribution is

• round shape

• bell shape

• oblong shape

• circle shape

The area under the normal curve is

• 1

• 1.5

• 2

• 3

The standard deviation of normal curve is

• 2

• 3

• 1

• 0

The tail of normal curve is

• touch at the horizontal axis

• Not flatten at the horizontal axis

• slight down at horizontal axis

• upper at the horizontal axis

The area of -1 to 1 is

• 95.26%

• 68.336%

• 68.28%

• 68.26%

area of Z = 2.68

• 0.4564

• 0.4963

• 0.4772

• 0.4999

The area of z= 1.5

• 0.4365

• 0.4532

• 0.4332

• 0.4352

area to the left of z= -2

• 0.0228

• 0.0282

• 0.2223

• 0.0224