For example, how to estimate

Estimation steps: make clear the estimation purpose, select the appropriate estimation method, collect relevant information, estimate and check the results.

1, specifying the purpose of the estimation.

First of all, the purpose of estimation needs to be clear. For example, estimate the time and budget required to reach the destination. This helps to determine the details and scope of the assessment.

2. Choose an appropriate estimation method.

According to the purpose and known conditions, choose the appropriate estimation method. For example, time estimation, you can use small estimation method to estimate time according to known speed and distance; Budget estimation can be based on the known cost and quantity, and the total cost can be estimated by the big estimation method.

Step 3 Collect relevant information

According to the purpose and the selected estimation method, collect relevant information. Such as the distance to the destination, the speed, the unit price of the required items, etc.

Step 4 make an estimate

According to the collected information and the selected estimation method, the estimation is made. For example, the small estimation method is used to estimate time: the known speed (for example, 40 kilometers per hour) and distance (for example, 50 kilometers) are substituted into the formula "time ≈ distance/speed" to get the time estimation value (for example, about 1.25 hours).

Step 5 Check the results

Finally, it needs to be checked according to the estimated results. For example, check whether the estimated value is within a reasonable range; Or compare the estimated value with the accurate value to judge the accuracy of the estimated result.