The phrase "safe estimate" is grammatically correct and can be used in written English.
It is typically used when providing a guess or approximation that is cautious and likely to be accurate. Example: "Based on the current market trends, a safe estimate for the cost of the project would be around $50,000."
But six is probably a safe estimate.
It's a safe estimate but not a very precise one.
The total value of the cars can only be guessed at, but a safe estimate will fall near 10 figures.
He did say that a safe estimate for the explosion is that it registered between a magnitude 2 and 3 on the Richter scale.
A safe estimate would put his personal wealth at somewhere around $50 million... Tells about his charitable donations to the N.A.A.C.P. and to Harvard University..
A safe estimate would put his personal wealth at somewhere around $50 million... Tells about his charitable donations to the N.A.A.C.P. and to Harvard University.
Finally, it is shown that the proposed DSM-based formula for ITF loading yields reasonable predictions of web crippling loads and provides safe estimates of flange crushing loads.
Furthermore, safe estimates were obtained when using EC2 to predict the crack widths in LWAC members under pure tensile load, whereas MC provided estimates in agreement with the experimental results.
The complete timing model is a network of timed automata which directly facilitates safe estimates of worst and best case execution time to be determined using the Uppaal model checker.
With these safe estimates, Clinton has a guaranteed 195 electoral votes, and Trump a guaranteed 163 electoral votes.
Our results are at least safe estimates of measurement error, but later studies of reliability should preferably include a larger sample size.
