Answer:
3/15 terminates. (It's 0.2)
Step-by-step explanation:
Answer:
150
Step-by-step explanation:
60 minutes in 1 hour
3x10= 30 in one hour
30x5=150 30 trucks in 5 hours
Divide the total number of yards (5 yards) by the bracelet size (18").
STEP 1:
convert total yards to inches
1 yard= 36 inches
= 5 yards * 36 inches
= 180 inches total
STEP 2:
divide total inches by bracelet size
= 180 ÷ 18 inch bracelet
= 10 bracelets
ANSWER: She can make 10 bracelets.
Hope this helps! :)
Answer:
4,7
Step-by-step explanation:
Answer:
a. the standard deviation for young mothers is not expected to be different than the standard deviation in the population
Step-by-step explanation:
The population mean = μ= 7.5
Sample mean = x`= 7.3
Sample standard deviation= s= 0.6
Sample size = 87
Assuming normality we perform z test
z= x`-u/s/√n
z= 7.3-7.5/0.6/√87
z= -3.11
The critical region for 0.05 for two tailed test is z>+1.96 and Z<-1.96
Since the calculated z= -3.11 falls in the critical region Z<-1.96 we conclude that birth rate is lower in the young mothers.
a. the standard deviation for young mothers is not expected to be different than the standard deviation in the population
Only choice a is correct because when n > 30 the population standard deviation and the sample standard deviation are assumed to be normal
Choice b cannot be the correct option because it is already inferred that only one baby was measured per mother.
Choice C cannot be also the best choice because it is already assumed.
Choice d is totally incorrect.
