Final answer:
To apply data validation allowing only decimal numbers less than 5.00 and blank cells, select the cells, go to 'Data' > 'Data Validation,' set the type to 'Decimal,' choose 'less than,' enter '5.00,' check 'Ignore blank,' and then click 'OK'.
Step-by-step explanation:
To apply data validation rules to selected cells in a spreadsheet software, allowing only decimal numbers less than 5.00 and to allow blank cells, follow these general steps:
- Select the cells you want to apply the data validation to.
- Go to the 'Data' tab, and click on 'Data Validation' in the 'Data Tools' group.
- In the Data Validation dialog box, under the 'Settings' tab, choose 'Decimal' from the 'Allow' list.
- In the 'Data' drop-down menu, select 'less than'.
- Enter '5.00' in the 'Maximum' value box.
- Check the box for 'Ignore blank' to allow blank cells.
- Click 'OK' to apply the data validation rules.
With these steps, your selected cells will only accept decimal numbers less than 5.00 or blank entries.