an estimate (m) is used based upon a statistic such as the arithmetic or geometric mean of past returns. 3. Problems with estimates of the expected return To investigate the properties of the arithmetic mean and geometric mean of past returns as estimators of the discount rate, we assume that annual total return
Regular digital thermometers use electronic heat sensors to record body temperature. These thermometers can be used in the rectum, mouth or armpit. Armpit temperatures are usually the least accurate. Rectal temperatures provide the best readings for infants, especially those 3 months or younger, as well as children up to age 3. For older children and adults, oral readings are usually accurate â as long as the mouth is closed while the thermometer is in place.
A normal temperature is about 98.6Â°F (37Â°C) when taken orally (in your childâs mouth) and 99.6Â°F (37.5Â°C) when taken rectally (in your childâs bottom). Many doctors define a fever as an oral temperature above 99.5Â°F (37.5Â°C) or a rectal temperature above 100.4Â°F (38Â°C). How should I take my childâs temperature? You can get the most accurate temperature by taking his or her temperature rectally.