Answer: 21
Step-by-step explanation:
Answer:
0.3kg(300g)
Step-by-step explanation:
£1=100p
£5=500p
5p=3g
500p=x
x=500*3/5
x=300g
Answer:
c) 4. i think.
Step-by-step explanation:
Answer:
-6
Step-by-step explanation:
(-10) - (-4)
-10 +4 (because negative multiply by negative is positive)
= -6 (because -10+4 means different signs means you subtract and get the sign of the bigger number)
Answer:
Standard error = 0.83
Step-by-step explanation:
Given that the heights in inches of males in the united states are believed to be approximately normally distributed with mean u
Sample mean for 25 adults randomly taken =
inches
Std deviation of sample s =
inches
Since X the height of males is Normal we find that the sample mean also will follow a normal distribution.
By central limit theorem, mean of x would be= sample mean= 69.72
Std error = 
Standard error of the mean = std dev/square root of sample size.
Here only sample std deviation is known
So we used it
Standard error = 0.83