Answer:
17,000
Step-by-step explanation:
1km = 1000 meters
17 * 1000 = 17,000 meters
Answer:
x = 65
Step-by-step explanation:
x + 115 = 180
x = 65
Answer:
Step-by-step explanation:
20000000000+3000000000+900000000+60000+8000+400+7
Answer:
3
Step-by-step explanation:
a positive 3 taken away from a negative 10 leaves you with less negative but still in the negative which means you get -7 so 3 is the blank
Answer:
Step-by-step explanation:
n = 400
Proportion p = 229/400= 0.5725
For 95% confidence interval we use Z value as 1.96
Std error = 0.025
margin of error = 1.96*0.025
Confidence interval 95% = 0.5725±Margin of error
= (0.524, 0.621)
b) When smiled x becomes 277
p = 0.6925
Std error = 0.023
Margin of error= 1.96*0.023
Confidence interval = (0.647, 0.738)
Smiling increases the chances of stopping since mean and conidence interval bounds are showing increasing trend.
