Final Answer:
The number 0.007062 rounded to 4 significant figures is 0.007062.
Step-by-step explanation:
When rounding a number to a specified number of significant figures, we focus on the first non-zero digit from the left. In this case, all the digits in 0.007062 are significant, and there are more than 4 digits after the decimal point. Rounding to 4 significant figures means considering all the digits, so the number remains unchanged.
The number 0.007062 has six significant figures. Rounding to four significant figures means considering only the first four significant digits. In this case, all the digits are significant, so no rounding is necessary. The digit in the fifth place is smaller than 5, which means the number remains the same when rounded to 4 significant figures.
To visualize, the digits in the number 0.007062 are all significant: 0, 0, 7, 0, 6, and 2. Rounding to four significant figures retains all these digits, resulting in the final answer of 0.007062.
Understanding significant figures is crucial in scientific calculations as it indicates the precision of a measurement. In this case, the number itself has more significant figures than required for rounding to 4 significant figures, so no alteration is needed. Therefore, the final answer remains unchanged at 0.007062, considering all six significant figures present in the original number.