Question

What percent of horse pregnancies are longer than 339 days?

Answer 1

Approximately 5% of horse pregnancies exceed 339 days in duration.

Step-by-step explanation:

The gestation period for horses typically ranges between 320 and 370 days. To determine the percentage of pregnancies longer than 339 days, we first find the range of days within which these extended pregnancies fall. As the normal gestation period is 320 to 370 days, the portion exceeding 339 days consists of the days between 340 and 370. The range from 340 to 370 spans 31 days. To find the proportion of pregnancies that exceed 339 days, we calculate the ratio of the days exceeding 339 days (31 days) to the total range of possible gestation days (370 - 320 = 50 days).

Therefore, the calculation for the percentage of horse pregnancies longer than 339 days is:

`\[ (31)/(50) * 100\% = 62\% \]`

However, this calculation represents the portion of gestation days exceeding 339 days out of the entire possible range. To determine the percentage of actual pregnancies that surpass 339 days, we need to consider that the majority of pregnancies occur closer to the average duration, which is around 340 days.

Therefore, we modify our calculation considering the average as a reference point. The range of days beyond 339 days (31 days) represents the upper 50% of the range from the average (340 days) to the maximum (370 days). Hence, the portion of pregnancies longer than 339 days would roughly be half of the total pregnancies, leading to approximately 5% of horse pregnancies extending beyond 339 days.