Answer:
D. The standard deviation is known and n > 30.
Step-by-step explanation:
- Your sample size is greater than 30.
- Data points should be away from each other.
- Your data should be commonly categorized.
- Your data should be randomly picked from a population. Each item should have an equal chance of being selected.
- The sample sizes should be equal.
Answer:
45
Step-by-step explanation:
x - 7 = 38
add 7 to both sides to get the variable by itself
x = 45
Answer:
30,000
Step-by-step explanation:
Set the other digits to zero to obtain your answer:
030,000
The value of the 3 is 30,000.
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It is in the "ten-thousands" place, so represents 3 ten-thousands, or thirty thousand.
Answer:
64,000 (2 s.f)
Step-by-step explanation:
1 km is 1000 metres
so, 1 km² = 1000 x 1000 m²
i.e. 1 km² = 1,000,000 m²
=> 63,800,000,000/1,000,000 = 63,800
The second significant figure is 3 --> 3000
so, to the nearest 1000 we have 64,000 (2 s.f)
Hope it help and if it is correct please give brainliest
Thank You
Multiply, then divide, Add, then subtract. PEMDAS, Please, Excuse, My, Dear, Aunt, Sally. Thats the order of operstions
